The word strongest has many meanings. An elastic band has incredible elastic strength, a diamond has incredible hardness. A carbon fibre has excellent tensile strength.
Titanium, for instance, is renowned for it's strength versus weight, but it also mauls more easily than high alloy steel.
It also depends which direction the force is applied in. Carbon fibre has terrible strength when in compression.
Sorry but in order to avoid any misunderstanding, I said that diamond is the HARDEST material known to man not the STRONGEST so what 'bone', 'carbon fibre', 'titanium' and the like have to do with this statement I really don't know.
Diamond is known as the hardest natural material known to man.
Indeed rubbing diamond against diamond will wear both out which is why the wheel which has the diamond compound stuck to it must be replaced on a regular basis.
This stands to reason as the both are being worn away but only the diamond gem is the one which is not to be replaced.
As science evolves probably one or other synthetic material will be developed so in view of this I will simply say that "diamond is the hardest NATURAL material known to man" just to set the record straight so to speak
"How can that cut diamond i thought diamond was the hardest"
Rubbing anything against anything else will create wear on the two. It's only a matter of which wears down quicker.
"Diamond is indeed the hardest material known to man and can only be worn away with diamond."
Beta carbon nitride is harder than diamond. And since it's only been produced on the nanoscale as far as I'm aware, a lot more expensive gram for gram too.
@Mikeymoomah Yup, the Nobel Prize winning 'sticky tape' method of production was actually invented at a local university, who also supplied me with some quantum hall sensors to mess around with. :P
I should have said in the other comment, the grinding disc will also wear down, but the diamond on the disc is the dirty industrial kind, so it's not too important if that wears (it's used, routinely, in building tools). Diamonds are rough 'cut' (in the normal sense of the word) by fracturing them.
Diamond is indeed the hardest material known to man and can only be worn away with diamond.
The wheel is impregnated with a specially prepared diamond 'paste' and it is this 'paste' which is wearing or cutting away the main diamond forming the facets.
we have 54carat diamond fancy yelow gia certificate.and there is small 1 or 2 carat from diamond island in martapura kalimantan.if you want buy.email me hroaln@gmail.com
Las instituciones financieras tienen dos metas principales , 1 ) darle ganancia a su compañía 2) darle ganancias a sus inversionistas ,pero que pasa cuando estas dos metas chocan una con la otra ,, pues naturalmente ellos prefieren traer ganancias a casa y dejan al inversionista en un lado.. Srs. es hora de invertir en algo tangible que quedara únicamente bajo su custodia y no en manos de ninguna institución financiera ,, es hora de invertir en Diamantes
They do indeed use laser technology but for the smaller stones. The larger expensive goods are better done bvy skilled cutters.
The 'record thing' is called a schijf (disk in flemish) and it has a special diamond mixture of powder and borax which cuts the diamond. It will cut the finger if pressed hard against it.
so do they not use lasers to cut diamonds? also, the cutter your using (the thing that looks like a record) why does it cut the diamond, but not your finger when your using it
What you are seeing is diamond wearing away diamond. Due to diamond being the hardest material known on earth it can only be cut with diamond dust. Also it is not as easy as it seems. What you are seeing is years of experience as diamonds are very expensive and they will not be entrusted to just anyone to cut. Methinks that you have got it wrong !
So diamonds are cut just as easily as pushing them into a rotating disc of metal or stone? I thought it was the hardest material on earth, and that metal or stone could not cut it? or wear it away. Sad to see its that easy to wear away and I guess no material on earth is really "invincible"
I guess we are inventing new super materials such as nanotubes and graphene these days, however we may even learn to re-align molecules one day to make a truly 99.999% invincible material !
@journeytosilius what is the point of making an invincible material. If people make it ofcourse they will learn how to take it apart. The way that materials become strong is due to bonds and crystal structure (or strange properties with impurity atoms or annealing or grain creation). these things can easily be taken apart and put back together. People do know how to align molecules but there isn't a use to create super strong material.
I can think of 1 use... future space travel, we will need stronger material than we have to withstand space radiation and miniature asteroids impacting the ships at 20,000 mph. If we can have a truly super strong material which is even somehow light weight, it would make space travel efforts and future planet colonization a much quicker reality.
@journeytosilius Yes that is a good use actually. i'd think there were easier more effective ways to protect agains asteroids and radiation. Also its unlikely people would use super strong material just because there is a trade off between strenght and ductility. More strenght = less ductile. Look up zincblend diomond structure adn some values of modules of elacticity of your really into it. I really don't know but I've always thought there was a way to make strong materials and be ductile
haha funny seeing people argue on here about diamond cutting!
Just to say that there are different types of shijf, normal, coated and impregnated.
The normal are the old ones used for many years that do come as basic metal and you need to prepare them yourself. Yourub them in circular motions with diamond powder (3-6 mesh is what we use) and then you have to work them in and get a nice running area....using low quality/indutrial rough. The impregnated and coated you dont need to do this with.
Nobody's arguing here my friend. Other than that you are quite right, there are different means of coating a schijf but this really doesn't interest the unitiated as long as they know that it is coated with a micture of diamond dust and borax. So unless the SPECIFIC question is asked it is not necessary to over expand and confuse. Why don't you expand and explain all three different methods for our followers?
The wheel is called a 'schijf'' which means 'disc' in Flemish. The shape of the diamond is determined by the rough, the wheel only cuts down the diamond material by wearing it away. The facets are applied by means of the 'DOP' the arm which is held over the wheel has it set at the end and allows the rough diamond set therein to be 'clicked' into position in order to apply the facets in their correct angles.
I believe that the wheel is made from steel, however, for a cutter, this is not important as it is not the wheel which grinds away the diamond but the diamond paste which is applied to it. The wheel, therefore, could be made of different metals.
It is not really a possibility to do so, however, more importantly is why go to the trouble and expense as well as a small risk to make an already smallish diamond even smaller unless of course it is a Victorian type of cut (old cut) which may not sparkle well. I would need to know more about the diamond to give an opinion worthy of merit.
If you can help me please i have diamond of 0,50 carats they say after a cut it going maybe to 0.30 in a good case is possible to make a cut that don´t take so much diamond?
Interesting question but a gemologist has nothing to do with the actual cutting of diamonds. Having said that the average course in gemology given by major diamond grading laboratories, is around 30 hours and takes about a week to accomplish. This 'schooling' is very superficial and is basically a good introduction to the profession. In order to gain the necessary experience to really exercise the profession at least 3 further years are required within the trade to master the different elements.
Why the hell are idiots and pathetic uptight people coming hear and telling you how its done? or why you doing it like this or that? get a life you sods!. you got your way they have theirs. Im a automotive engineer for the same task (separating a ball joint)i can use a 1 ton hammer, a hammer and a cold chisel, a hammer whit a universal ball joint separator, or a ball joint separator with a wrench. Now you guna tell me i have to use a laser guided computer operated inferno cannon. Duh!.
Thanks! Thats so interesting, always wondered how it was done. How do you get it all symmetrical just by sight? How long does it take to be able to do this professionally.
@matolies The wheel is coated with a mixture of diamond dust and a specially prepared oily substance. Sometimes, to the discretion of the cutter, he will use his finger in order to reapply some further oily mixture to a partially worn part of the cutting wheel.
do you use a computer for arranging the facets in the optimal way? do you get the diamonds directly from the mines and how much do you get for cutting one diamond?i have allways been fascinated with stones, especially the yellows
@d7gh2u99wd Automatic computer directed machines are used for small diamonds, the larger and better quality ones are cut by hand. Cutting costs differ enormously depending on the size and shape as well as quality of the rough and what is needed in order to get the best out of it. Prices of around USD$ 500 per carat are quite common.
He is not touching the wheel with his fingers. It is set in a holder ('dop' ) at the end of an arm ('tang'). The diamond revolves automatically which presents another angle to wheel thus able to cut the facet. The vibrating movement is important it is in this way that one obtains a scratch free highly polished surface to the diamond, only a part of surface of wheel is used as the wheel shades show. This is called the 'finish' on a cert.. A diamond poorly finished will show 'lines' on facets.
@pinkfreud62 Using a circular motion once complete it is left to dry. Then the hard part is when you take a Tang (That strange looking device you see the Diamond cutter with) The tang is used to hold the Industrial diamond in what is called a pot. Before placing the tang on the skyf being dressed you first have find the running line and one found then you can start to dress you new skyf that you are preparing.
The tang is used to hold a diamond for cutting not an industrial diamond. Your 'pot' is incorrect it is a 'dop'. A running line is incorrect and poorly described and confusing as one doesn't 'dress' a new schijf one uses parts of it for different purposes during the cutting process. If this you call 'dressing', fine but it is very confusing to someone with no experience.
@pinkfreud62 Using a circular motion once complete it is left to dry. Then the hard part is when you take a Tang (That strange looking device you see the Diamond cutter with) The tang is used to hold the Industrial diamond in what is called a pot. Before placing the tang on the skyf being dressed you first have find the running line and one found then you can start to dress you new skyf that you are preparing.
The wheel is made of steel which is then specially coated with a solution containing diamond dust.
The diamond is run along this coating which must regularly be re-applied. During the cutting process the cutter also applies extra diamond dust contained within a special solution.
The cutter, if not careful can easily damage the wheel.
@pinkfreud62 The wheel is called a skyf and what happens you get one of the wheels in it's rough form (sand blasted or done with what I think is called a brazing wheel) this wheel has fine pours in it and when the wheel is placed in the right full place and set up correctly you then take diamond powder and place it on the skyf and with a circular motion rub the powder into the skyf you then need a special glue and this glue is also rubbed into the skyf.
@Sunclief Sorry my friend but you don't seem to know what you are talking about.
The cutter has no control on the wheel's manufacture it is done by specialists who deliver schijfs to the cutting works pre-prepared with a diamond dust coating already applied to it. There is NO GLUE involved either, the diamond dust is mixed with a substance called borax and applied to the schijf which is then heated to allow the mixture to 'stick'. A schijf does not last long and must be changed regularly.
@georgezaidmann Unfortunately for you I do as I trained as a Diamond Cutter because I used to prepare Skyfs myself and. As for my Skyf it could last me as long as three months so if you are going through skyf as quick as that then you can not be very good because you have a Testing area,
@Sunclief I am sorry but we have our own diamond cutting works and whoever taught you to cut diamonds in that way knows nothing about it.
You can fool most people most of the time but this person you certainly cannot so please stop misleading people with information based on what I can only describe as nonsensical information. There are no 'pours' on a schijf ( from the flemish 'disc'). You do not place diamond dust on the schijf, only a mixture containing borax to keep the schijf impregnated.
@Sunclief If a schijf is used for 3 months then not much work has been done with it. If it used professionally as we do ours then it doesn't last more than 3 weeks. Our cutters work a 38 hour week and are very highly skilled. Once worn the schijfs are professionally re-conditioned. We rotate them as one does with butane gas bottles.
If something I have said is misleading please correct me as I have corrected you but don't disagree with me using unsubstantiated allegations.
@georgezaidmann Well no it's obvious that you just do things differantly as it always is from one country to another. I eventually got a Diamond Cutters Diploma, Also Diamond marking Diploma (Never used) Diamond Sorting Diploma (Never used). It has been fouteen years since then and as i said I branched out into Engineering and IT (Computers). I found it an interesting trade.
@georgezaidmann running area and sooting area and if you scratch the testing are alot then that tell me alone that you do not know what you are doing your self. You can get a book called diamond Cutting by Basil Watermyer that book wil help.
@Sunclief Indeed there are areas,one for cutting and another for polishing.
The cutting is called 'faceteering' the polishing 'brilliandeering, calling it the running and sooting areas, however, to any cutter these terms will be meaningless.
You have obviously read a book and misunderstood its contents which shows by the efforts you have made responding to my video film.
I am a member of a diamond exchange as shown on our website.
Who are you to say that I don't know what I am talking about.
@georgezaidmann The book was part of my training course work and I worked as a Diamond cutter for five years untill my Job moved out to Indea I then went to University and got my Masters in Mechanical Engineering. In fact I never went back to it because the money was shit and finding a job as a diamond cutter was not easy so I gave up and bettered myself.
@Sunclief Well that explains it then you are only as good as the people who have taught you and learning to cut diamonds partly from a book is not to be recommended.
Having said that the terms 'tegen', 'in' & 'uit' (in & out) are indeed terms used but NOT for the non mechanical fully automated modern 'dops'. It has indeed been a long long time for you and you have probably mixed details up a bit. For me this is an ongoing job and is why I am online to give all the benefit of my experience.
@georgezaidmann I did have an instructor and in fact he was the best he even had some certificate's from DeBeers I remember seeing it. The School I went to was The Diamond Cutter Training School, I did my intial training then I went and worked at TFN Diamond Cutting Works.
@Sunclief Well my friend now you have put your foot in it as DeBeers has NOTHING to do with diamond cutting, in fact they sell their rough to 'sightholders' who do the cutting whether controlled by DeBeers or not.
Please understand that if it was not for the fact that your incorrect comments get read by people visiting my utube video I would not be responding to you. For this reason as you have not told us where this training school was nor what TFN stands for please do so.
@Sunclief By the way if you were girdling diamonds you would be putting the diamond in a 'POT' which is perhaps why you remember this term. A 'pot' is not used in the actual cutting process.
I gather, from what you are telling me that you have been learning the trade in India, perhaps taught by a Belgian cutter on very cheap goods which will explain why you were allowed to girdle the diamond in the first place and wear down your schijfs to the bitter end. Please don't confuse the issues.
@georgezaidmann By the way where can I get one of those fold out "Loupe's" you know the 10X Manifieing glass you use to check out your facets that you are making as you go along with the Diamond?
@Sunclief If you go online and look for it on one of the search engines you will find a supplier or you can go to Antwerp where there are several stores, ie. Rubin& sons and Davids where these can be purchased.
@georgezaidmann I still remember some of the tang possitions like tegen in, tegen Uit, In die Tang, Uit die tang and so on but, it has been a long, long time.
@Sunclief Its good to hear that you have changed jobs as working as a cutter, in India, is indeed 'painful' and I would not recommend it to anyone.
I now understand your 'schijf' issues as you were probably in India at the time where 'unorthodox' techniques were used preparing tools in view of the poor quality of goods cut. In Antwerp we use the best equipment available and ONLY cut 'quality' larger diamonds where great care is taken in the preparation of our tools.
@georgezaidmann The Tangs that you use are the nice and very expensive one's the one's I used had a wooden back to it and a Aluminium nech then the Head(Brass) if I recall correctly. The word "DOP" does ring a bell. As for the Girdle that was the hardest and you can not mess up here you will never hear the end of it if you do.
@Sunclief Yes you would have used 'tangs' which have long been absolete with us. If your 'dop head' was in brass then we are going back some 30 years. I don't understand what you mean about the 'girdle' as this is NOT part of diamond cutting (faceteering). The girdling process is a separate entity and done by a specialised worker. If you did it then no wonder it was hard for you. The cutter, however, can apply facets to the girdle but this is not required in most cases.
oops, oops, damn it, shit.
Don't worry mt my apprentice you'll get the hang of it, but in the mean time you now owe me five million dollars
sendahojust1 5 days ago
i feel like masturbating after watch this video
vodanh1941 1 month ago
diamond in the form of a diamond paste applied to the cutting wheel.
georgezaidmann 1 month ago
If the Diamond is the hardest matter on the Earth, then what material is used to cut them?
spacebrdcst 1 month ago
@spacebrdcst im pre sure that they use some kind of think covered in diamond dust to cut em but im not totally sure
plutocuteguy 1 month ago
just put 3 diamonds in a row two sticks at the bottom and there! you got a pick axe
mrliampep5i 1 month ago
"bone is the strongest material."
The word strongest has many meanings. An elastic band has incredible elastic strength, a diamond has incredible hardness. A carbon fibre has excellent tensile strength.
Titanium, for instance, is renowned for it's strength versus weight, but it also mauls more easily than high alloy steel.
It also depends which direction the force is applied in. Carbon fibre has terrible strength when in compression.
lexichronicle2 2 months ago
Sorry but in order to avoid any misunderstanding, I said that diamond is the HARDEST material known to man not the STRONGEST so what 'bone', 'carbon fibre', 'titanium' and the like have to do with this statement I really don't know.
Diamond is known as the hardest natural material known to man.
georgezaidmann 2 months ago 3
@georgezaidmann "Sorry but in order to avoid any misunderstanding, I said that diamond is the HARDEST material known to man not the STRONGEST"
Someone else said "bone is the strongest".
lexichronicle2 2 months ago
@lexichronicle2 bone like pearls are not as hard as diamonds and can be scratched easily by the fingernails.
GIA13615093 2 months ago
no comment
georgezaidmann 3 months ago
Indeed rubbing diamond against diamond will wear both out which is why the wheel which has the diamond compound stuck to it must be replaced on a regular basis.
This stands to reason as the both are being worn away but only the diamond gem is the one which is not to be replaced.
As science evolves probably one or other synthetic material will be developed so in view of this I will simply say that "diamond is the hardest NATURAL material known to man" just to set the record straight so to speak
georgezaidmann 3 months ago
@georgezaidmann bone is the strongest material.
ididntmakethisname 3 months ago
"How can that cut diamond i thought diamond was the hardest"
Rubbing anything against anything else will create wear on the two. It's only a matter of which wears down quicker.
"Diamond is indeed the hardest material known to man and can only be worn away with diamond."
Beta carbon nitride is harder than diamond. And since it's only been produced on the nanoscale as far as I'm aware, a lot more expensive gram for gram too.
lexichronicle2 3 months ago
@lexichronicle2 do you know of graphene?? that seems to be the strongest, toughest and hardest material yet :]
Mikeymoomah 2 months ago
@Mikeymoomah Yup, the Nobel Prize winning 'sticky tape' method of production was actually invented at a local university, who also supplied me with some quantum hall sensors to mess around with. :P
I should have said in the other comment, the grinding disc will also wear down, but the diamond on the disc is the dirty industrial kind, so it's not too important if that wears (it's used, routinely, in building tools). Diamonds are rough 'cut' (in the normal sense of the word) by fracturing them.
lexichronicle2 2 months ago
Diamond is indeed the hardest material known to man and can only be worn away with diamond.
The wheel is impregnated with a specially prepared diamond 'paste' and it is this 'paste' which is wearing or cutting away the main diamond forming the facets.
georgezaidmann 3 months ago
How can that cut diamond i thought diamond was the hardest
therattleking 3 months ago
This has been flagged as spam show
we have 54carat diamond fancy yelow gia certificate.and there is small 1 or 2 carat from diamond island in martapura kalimantan.if you want buy.email me hroaln@gmail.com
heroalan100 3 months ago
uf. very interesting.
UTubeisSHIT523441 4 months ago
its like a DJ
edhingo1 4 months ago
Very nice job !!!
ginofrater 5 months ago
This has been flagged as spam show
Koby kamhaji
Diamonds panama
Las instituciones financieras tienen dos metas principales , 1 ) darle ganancia a su compañía 2) darle ganancias a sus inversionistas ,pero que pasa cuando estas dos metas chocan una con la otra ,, pues naturalmente ellos prefieren traer ganancias a casa y dejan al inversionista en un lado.. Srs. es hora de invertir en algo tangible que quedara únicamente bajo su custodia y no en manos de ninguna institución financiera ,, es hora de invertir en Diamantes
interkoby 5 months ago
Thanks for the compliment
georgezaidmann 5 months ago
did he use to work as a DJ? haha
123qwerty 8 months ago 10
They do indeed use laser technology but for the smaller stones. The larger expensive goods are better done bvy skilled cutters.
The 'record thing' is called a schijf (disk in flemish) and it has a special diamond mixture of powder and borax which cuts the diamond. It will cut the finger if pressed hard against it.
georgezaidmann 9 months ago 5
so do they not use lasers to cut diamonds? also, the cutter your using (the thing that looks like a record) why does it cut the diamond, but not your finger when your using it
Rampagedd 9 months ago
What you are seeing is diamond wearing away diamond. Due to diamond being the hardest material known on earth it can only be cut with diamond dust. Also it is not as easy as it seems. What you are seeing is years of experience as diamonds are very expensive and they will not be entrusted to just anyone to cut. Methinks that you have got it wrong !
georgezaidmann 10 months ago
So diamonds are cut just as easily as pushing them into a rotating disc of metal or stone? I thought it was the hardest material on earth, and that metal or stone could not cut it? or wear it away. Sad to see its that easy to wear away and I guess no material on earth is really "invincible"
I guess we are inventing new super materials such as nanotubes and graphene these days, however we may even learn to re-align molecules one day to make a truly 99.999% invincible material !
journeytosilius 10 months ago
@journeytosilius what is the point of making an invincible material. If people make it ofcourse they will learn how to take it apart. The way that materials become strong is due to bonds and crystal structure (or strange properties with impurity atoms or annealing or grain creation). these things can easily be taken apart and put back together. People do know how to align molecules but there isn't a use to create super strong material.
ubercute1sf 9 months ago
@ubercute1sf
I can think of 1 use... future space travel, we will need stronger material than we have to withstand space radiation and miniature asteroids impacting the ships at 20,000 mph. If we can have a truly super strong material which is even somehow light weight, it would make space travel efforts and future planet colonization a much quicker reality.
journeytosilius 9 months ago
@journeytosilius Yes that is a good use actually. i'd think there were easier more effective ways to protect agains asteroids and radiation. Also its unlikely people would use super strong material just because there is a trade off between strenght and ductility. More strenght = less ductile. Look up zincblend diomond structure adn some values of modules of elacticity of your really into it. I really don't know but I've always thought there was a way to make strong materials and be ductile
ubercute1sf 9 months ago
i have 2ct unheated and uncut diamond fresh from the ground,,, where can i find someone to make them into priincsess cut
dragen55 10 months ago
Please contact me at jewellerywebshop@gmail.com
georgezaidmann 10 months ago
OH YEAH DJ IN THE HOUSE!!!
DemonXY2J 11 months ago
this is cool stuff... but it looks like diamond "cutting" is more like diamond "fileing" you know, like you file your nails?
LilDemon147 1 year ago
haha funny seeing people argue on here about diamond cutting!
Just to say that there are different types of shijf, normal, coated and impregnated.
The normal are the old ones used for many years that do come as basic metal and you need to prepare them yourself. Yourub them in circular motions with diamond powder (3-6 mesh is what we use) and then you have to work them in and get a nice running area....using low quality/indutrial rough. The impregnated and coated you dont need to do this with.
1978ilana 1 year ago
Nobody's arguing here my friend. Other than that you are quite right, there are different means of coating a schijf but this really doesn't interest the unitiated as long as they know that it is coated with a micture of diamond dust and borax. So unless the SPECIFIC question is asked it is not necessary to over expand and confuse. Why don't you expand and explain all three different methods for our followers?
georgezaidmann 1 year ago
What s the wheel called that shapes and cuts the diamond?
solitudealwaysam1 1 year ago
The wheel is called a 'schijf'' which means 'disc' in Flemish. The shape of the diamond is determined by the rough, the wheel only cuts down the diamond material by wearing it away. The facets are applied by means of the 'DOP' the arm which is held over the wheel has it set at the end and allows the rough diamond set therein to be 'clicked' into position in order to apply the facets in their correct angles.
georgezaidmann 1 year ago
@georgezaidmann
From what material that the wheel made of?
Ruchira88 1 year ago
I believe that the wheel is made from steel, however, for a cutter, this is not important as it is not the wheel which grinds away the diamond but the diamond paste which is applied to it. The wheel, therefore, could be made of different metals.
georgezaidmann 1 year ago
It is not really a possibility to do so, however, more importantly is why go to the trouble and expense as well as a small risk to make an already smallish diamond even smaller unless of course it is a Victorian type of cut (old cut) which may not sparkle well. I would need to know more about the diamond to give an opinion worthy of merit.
georgezaidmann 1 year ago
If you can help me please i have diamond of 0,50 carats they say after a cut it going maybe to 0.30 in a good case is possible to make a cut that don´t take so much diamond?
sexoja23 1 year ago
Interesting... how long does it usually take for someone to earn the title "Gemologist" with all the schooling? Thanks for the vid.
albert333pool 1 year ago
Interesting question but a gemologist has nothing to do with the actual cutting of diamonds. Having said that the average course in gemology given by major diamond grading laboratories, is around 30 hours and takes about a week to accomplish. This 'schooling' is very superficial and is basically a good introduction to the profession. In order to gain the necessary experience to really exercise the profession at least 3 further years are required within the trade to master the different elements.
georgezaidmann 1 year ago
that awesome!!
shadowyumyum 1 year ago
so is it pretty much just grinding the diamond on the spinning plate right?
shadowyumyum 1 year ago
Yes it is indeed !!
georgezaidmann 1 year ago
Why the hell are idiots and pathetic uptight people coming hear and telling you how its done? or why you doing it like this or that? get a life you sods!. you got your way they have theirs. Im a automotive engineer for the same task (separating a ball joint)i can use a 1 ton hammer, a hammer and a cold chisel, a hammer whit a universal ball joint separator, or a ball joint separator with a wrench. Now you guna tell me i have to use a laser guided computer operated inferno cannon. Duh!.
massivemak 1 year ago
Thanks! Thats so interesting, always wondered how it was done. How do you get it all symmetrical just by sight? How long does it take to be able to do this professionally.
bomaoneuk 1 year ago
Why do you rub your finger on the spinning plate?
matolies 1 year ago
@matolies The wheel is coated with a mixture of diamond dust and a specially prepared oily substance. Sometimes, to the discretion of the cutter, he will use his finger in order to reapply some further oily mixture to a partially worn part of the cutting wheel.
georgezaidmann 1 year ago
do you use a computer for arranging the facets in the optimal way? do you get the diamonds directly from the mines and how much do you get for cutting one diamond?i have allways been fascinated with stones, especially the yellows
d7gh2u99wd 1 year ago
@d7gh2u99wd Automatic computer directed machines are used for small diamonds, the larger and better quality ones are cut by hand. Cutting costs differ enormously depending on the size and shape as well as quality of the rough and what is needed in order to get the best out of it. Prices of around USD$ 500 per carat are quite common.
georgezaidmann 1 year ago
He is not touching the wheel with his fingers. It is set in a holder ('dop' ) at the end of an arm ('tang'). The diamond revolves automatically which presents another angle to wheel thus able to cut the facet. The vibrating movement is important it is in this way that one obtains a scratch free highly polished surface to the diamond, only a part of surface of wheel is used as the wheel shades show. This is called the 'finish' on a cert.. A diamond poorly finished will show 'lines' on facets.
georgezaidmann 1 year ago
@pinkfreud62 Using a circular motion once complete it is left to dry. Then the hard part is when you take a Tang (That strange looking device you see the Diamond cutter with) The tang is used to hold the Industrial diamond in what is called a pot. Before placing the tang on the skyf being dressed you first have find the running line and one found then you can start to dress you new skyf that you are preparing.
Sunclief 1 year ago
@Sunclief
The tang is used to hold a diamond for cutting not an industrial diamond. Your 'pot' is incorrect it is a 'dop'. A running line is incorrect and poorly described and confusing as one doesn't 'dress' a new schijf one uses parts of it for different purposes during the cutting process. If this you call 'dressing', fine but it is very confusing to someone with no experience.
georgezaidmann 1 year ago
@pinkfreud62 Using a circular motion once complete it is left to dry. Then the hard part is when you take a Tang (That strange looking device you see the Diamond cutter with) The tang is used to hold the Industrial diamond in what is called a pot. Before placing the tang on the skyf being dressed you first have find the running line and one found then you can start to dress you new skyf that you are preparing.
Sunclief 1 year ago
whats with the dj thing?
pacoaliv 2 years ago
The wheel is made of steel which is then specially coated with a solution containing diamond dust.
The diamond is run along this coating which must regularly be re-applied. During the cutting process the cutter also applies extra diamond dust contained within a special solution.
The cutter, if not careful can easily damage the wheel.
georgezaidmann 2 years ago
can I get a diamond for free? ;)
korencek 2 years ago
Just curious...since diamond is so hard, what knd of material is the cutting wheel made of? Is it a diamond alloy of some sort?
pinkfreud62 2 years ago
@pinkfreud62 The wheel is called a skyf and what happens you get one of the wheels in it's rough form (sand blasted or done with what I think is called a brazing wheel) this wheel has fine pours in it and when the wheel is placed in the right full place and set up correctly you then take diamond powder and place it on the skyf and with a circular motion rub the powder into the skyf you then need a special glue and this glue is also rubbed into the skyf.
Sunclief 1 year ago
@Sunclief Sorry my friend but you don't seem to know what you are talking about.
The cutter has no control on the wheel's manufacture it is done by specialists who deliver schijfs to the cutting works pre-prepared with a diamond dust coating already applied to it. There is NO GLUE involved either, the diamond dust is mixed with a substance called borax and applied to the schijf which is then heated to allow the mixture to 'stick'. A schijf does not last long and must be changed regularly.
georgezaidmann 1 year ago
@georgezaidmann Unfortunately for you I do as I trained as a Diamond Cutter because I used to prepare Skyfs myself and. As for my Skyf it could last me as long as three months so if you are going through skyf as quick as that then you can not be very good because you have a Testing area,
Sunclief 1 year ago
@Sunclief I am sorry but we have our own diamond cutting works and whoever taught you to cut diamonds in that way knows nothing about it.
You can fool most people most of the time but this person you certainly cannot so please stop misleading people with information based on what I can only describe as nonsensical information. There are no 'pours' on a schijf ( from the flemish 'disc'). You do not place diamond dust on the schijf, only a mixture containing borax to keep the schijf impregnated.
georgezaidmann 1 year ago
@Sunclief If a schijf is used for 3 months then not much work has been done with it. If it used professionally as we do ours then it doesn't last more than 3 weeks. Our cutters work a 38 hour week and are very highly skilled. Once worn the schijfs are professionally re-conditioned. We rotate them as one does with butane gas bottles.
If something I have said is misleading please correct me as I have corrected you but don't disagree with me using unsubstantiated allegations.
georgezaidmann 1 year ago
@georgezaidmann Well no it's obvious that you just do things differantly as it always is from one country to another. I eventually got a Diamond Cutters Diploma, Also Diamond marking Diploma (Never used) Diamond Sorting Diploma (Never used). It has been fouteen years since then and as i said I branched out into Engineering and IT (Computers). I found it an interesting trade.
Sunclief 1 year ago
@georgezaidmann running area and sooting area and if you scratch the testing are alot then that tell me alone that you do not know what you are doing your self. You can get a book called diamond Cutting by Basil Watermyer that book wil help.
Sunclief 1 year ago
@Sunclief Indeed there are areas,one for cutting and another for polishing.
The cutting is called 'faceteering' the polishing 'brilliandeering, calling it the running and sooting areas, however, to any cutter these terms will be meaningless.
You have obviously read a book and misunderstood its contents which shows by the efforts you have made responding to my video film.
I am a member of a diamond exchange as shown on our website.
Who are you to say that I don't know what I am talking about.
georgezaidmann 1 year ago
@georgezaidmann The book was part of my training course work and I worked as a Diamond cutter for five years untill my Job moved out to Indea I then went to University and got my Masters in Mechanical Engineering. In fact I never went back to it because the money was shit and finding a job as a diamond cutter was not easy so I gave up and bettered myself.
Sunclief 1 year ago
@Sunclief Well that explains it then you are only as good as the people who have taught you and learning to cut diamonds partly from a book is not to be recommended.
Having said that the terms 'tegen', 'in' & 'uit' (in & out) are indeed terms used but NOT for the non mechanical fully automated modern 'dops'. It has indeed been a long long time for you and you have probably mixed details up a bit. For me this is an ongoing job and is why I am online to give all the benefit of my experience.
georgezaidmann 1 year ago
@georgezaidmann I did have an instructor and in fact he was the best he even had some certificate's from DeBeers I remember seeing it. The School I went to was The Diamond Cutter Training School, I did my intial training then I went and worked at TFN Diamond Cutting Works.
Sunclief 1 year ago
@Sunclief Well my friend now you have put your foot in it as DeBeers has NOTHING to do with diamond cutting, in fact they sell their rough to 'sightholders' who do the cutting whether controlled by DeBeers or not.
Please understand that if it was not for the fact that your incorrect comments get read by people visiting my utube video I would not be responding to you. For this reason as you have not told us where this training school was nor what TFN stands for please do so.
georgezaidmann 1 year ago
@Sunclief By the way if you were girdling diamonds you would be putting the diamond in a 'POT' which is perhaps why you remember this term. A 'pot' is not used in the actual cutting process.
I gather, from what you are telling me that you have been learning the trade in India, perhaps taught by a Belgian cutter on very cheap goods which will explain why you were allowed to girdle the diamond in the first place and wear down your schijfs to the bitter end. Please don't confuse the issues.
georgezaidmann 1 year ago
@georgezaidmann By the way where can I get one of those fold out "Loupe's" you know the 10X Manifieing glass you use to check out your facets that you are making as you go along with the Diamond?
Sunclief 1 year ago
@Sunclief If you go online and look for it on one of the search engines you will find a supplier or you can go to Antwerp where there are several stores, ie. Rubin& sons and Davids where these can be purchased.
georgezaidmann 1 year ago
@georgezaidmann I still remember some of the tang possitions like tegen in, tegen Uit, In die Tang, Uit die tang and so on but, it has been a long, long time.
Sunclief 1 year ago
@Sunclief Its good to hear that you have changed jobs as working as a cutter, in India, is indeed 'painful' and I would not recommend it to anyone.
I now understand your 'schijf' issues as you were probably in India at the time where 'unorthodox' techniques were used preparing tools in view of the poor quality of goods cut. In Antwerp we use the best equipment available and ONLY cut 'quality' larger diamonds where great care is taken in the preparation of our tools.
georgezaidmann 1 year ago
@georgezaidmann The Tangs that you use are the nice and very expensive one's the one's I used had a wooden back to it and a Aluminium nech then the Head(Brass) if I recall correctly. The word "DOP" does ring a bell. As for the Girdle that was the hardest and you can not mess up here you will never hear the end of it if you do.
Sunclief 1 year ago
@Sunclief Yes you would have used 'tangs' which have long been absolete with us. If your 'dop head' was in brass then we are going back some 30 years. I don't understand what you mean about the 'girdle' as this is NOT part of diamond cutting (faceteering). The girdling process is a separate entity and done by a specialised worker. If you did it then no wonder it was hard for you. The cutter, however, can apply facets to the girdle but this is not required in most cases.
georgezaidmann 1 year ago