Faceting a Diamond
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- Опубликовано: 17 окт 2024
- Hello and welcome. My name is Cliff and I'm an Australian gem cutter. Ever wondered what it would be like to facet your own diamond? This is my first attempt to facet a diamond and it lives up to it reputation of being the hardest and most durable gem ever. This educational video will give you an idea how tough a diamond really is! If you enjoy my channel, then become a patron. Patrons receive special tuition videos and extra perks, and by showing your support it helps support the channel for future content. Link below. Best Wishes Cliff
paypal.me/vint...
/ vintagetime
I applaud you for having a go at cutting a diamond with a standard gem faceting machine. I gave it a go once myself and didn’t even get as far as you did. Then a diamond cutter from my area invited me to his workshop with appropriate tangs, mechanical dops and machinery. After two days of cutting I decided to let him finish cutting my diamond and decided to stick with cutting other stones.
Hi, I would love to facet diamonds. The way they are dropping in price there is a possibility they may become affordable to facet.
Hello. You will need an iron scaife impregnated with diamond dust & caster oil. You will need to understand the grain or Voss of the stone and what you have there is a sawable not a makable. The Dodec is the third form of crystallography (cubic and octa) and you will need to position the table first. After sawing a top from the stone. Then set your stone into cross by polishing the top hoeks or corners at 34° then your bottom facets at 40.9°. Then 4 more facets opposite to these to create top corners above and below. You will need to brut the girdle on a manual Rams bruting machine or a Bettonville laser or similar. Then upper half facets and stars to create the bezel from the hoeks and corners and then the lower halfs 80° towards the polished culet. Then Zoet or smooth each facet on your scaife zoeting ring. Believe me polishing a diamond is Not polishing any other gemstone. Ask me anything you'd like to know. 34 years with De Beers!
Thanks for the information. There is quite a bit involved with cutting a diamond. Unfortunately I don't have the right equipment or the expertise. I thought it would be nice to test out how hard a Diamond is and see what it feels like on the lap. Diamonds certainly live up to their reputation as very hard gem. It would be good to learn the craft of cutting diamonds. Most likely it would be a very expensive hobby. Cheers
@sievecn do you provide training on diamond cutting and polishing? I am looking for a mentor who can teach me the skill. Willing to travel and work for free until I learn the craft?
I had no idea how differently the hardness at the upper end of the scale affects the cutting and polishing of pieces. This is a good demonstration of the limits of home gem cutting. What patience one would have to have without the proper tools. :-) Thanks for sharing.
The cost of wearing out laps would cost more than the diamond is worth.
WOW this video is very educational. umm .. I don't think I will be cutting a diamond as my first gem to cut ever . My Facetron is being shipped in 10 days . I am so excited .I have never cut gems before on a proper machine. This is a purchases of a lifetime to me. Talk about commiting to your craft. I am a jewelry artist from Arizona who fabricates Silver and set stone jewelry by hand. Being able to cut my own gems is really a great addition to my skills. Thank you Cliff! I love your videos , they really have taught me things I did not know .
Hi Bunnie, welcome to the world of faceting. Being able to cut your own gems is so much fun. There is always something new to learn also. Let me know how you progress? Regards Cliff
A gemcutter's true challenge: facet a diamond.
It's one of the end goals of gemcutters around the world: 1: to have enough skill to be able to cut the diamond without ruining it, 2: to have a good enough equipment to cut it, 3: to have bought/mined/gotten a rough diamond large enough to cut. All these three factors combined makes gemstone cutters shiver with both anticipation and fear when faceting their first diamond.
Me? I'm sticking with semi/precious stones, no thank you.
I'm sticking to regular gems. Diamonds need special equipment. Also, the average person like myself could not even afford to buy quality diamond rough. Cheers
One another fav channel of mine, Periodic Videos, subjected diamond cutting with the title of Polishing a pink mega diamond. It is said in that video that it had taken two months to polish that diamond. Needs tons of patience and rock solid backbone :p. I can't imagine how many discs they swap during the faceting that diamond.
Good morning, thank you for your channel I enjoy watching you cutting stones. I'm a diamond cutter and if I may allow me to give some tips. You don't need water to cut diamond, the only way you'll succeed is by having a special disc coated with diamond powder, it's the only way to get a glossy finished facet without polished marks. You should also start by the girdle and if you are cutting a round brilliant you need another diamond (bort quality) to be able to do it. You should also know that rough diamonds comes in different shape and some facet are harder on the disc.
Thanks for the information....
Commenting just to know where this is in the future because at some point I would like to cut some diamonds.
@@JaredaSohn this is relevant as of today
@@nss-diver thanks
Thanks for the info I am considering to cut a diamond too.
Thank you cliff for the video. You hear diamonds are hard but that just proves it to see you cutting it, or not.
Thanks Tony, Diamonds certainly live up to their reputation as being the worlds hardest gem. Cheers
You're very talented, Thanks for sharing.
Sweet sweet I’m positive time your done it will be fantastic as always great knowledge thank you for sharing fantastic video
Thank you kindly
Cliff I really like your faceting machine. It looks much sturdier than most.
What brand is it?
For diamond cutting and polishing there are tools available in the market like diamond holder and diamond polisher wheel so you can easy to work with that
I was thinking about cutting a small argyle diamond just to see if i could but thats on hold after watching your effort. Love ya work. 👍🍺🦘
Give it a try, but it could take forever without the right equipment.
Cliff I've got an old halls machine from the 80's that belonged to my dad long dead 1990, but i have his old solid copper laps that I've machined that I use for prepolish with great results on sapphire. Diamond powder on copper wd40, hold my beer mate 👍🍺
Thank you for sharing your experience with us👏 Super interesting experiment. It illustrates very well how hard a diamond is💎
Thanks GermanGemcutter, this video gives the average gem cutter an idea how difficult it is to facet diamonds.
If I didn’t spend all my money on whisky... I might be able to afford a diamond to cut!!! Lol. This was neat. Thanks for sharing
Your lucky you live in the US, Government taxes on liquor in Australia are unreal. Cheers
Really eye opening. Thanks for sharing.
Glad you enjoyed it!
Outer and inner MUST run the same RPM, what you mean is linear surface speed is highest at the outer region.
instablaster...
You're right! Same RPM, not same surface area.
Very interesting, I've never seen this done before.🧊🧊🧊🧊🧊
Thank you....
Thanks for the video!
If you can find laps that say "nickel boron " ,"TiN"(titanium nitride) ," melanite" "np3 " or "hot salt bath nitride" its all harder than diamond and shoukd help your cause as they dont change the surface dimensions what so ever. It changes the metal itself makes a super hard and low friction (were flat ,the grit will still be high friction despite lower coefficiant.it means less heat when cutting and longer wearing items ) if you cant buy laps with the surface conversions , i KNOW you can have laps treated or depending on what you have access tofor resources, you may be able to afford a small nitriding setup and do the conversions yourself. Im sure it will make the laps last ALOT longer. Especially when new .
Thanks. Interesting information. The laps would probably cost a fortune and so would the diamonds. Cheers
What brand of lap are you using?
Yes, i learnt I should stick to corundom or softer and leave diamonds to the provs
Thanks for sharing bud
@@Babulal-nz8ii
I may have already sent this,,
Your quite right , diamonds have been cut for a long time before machines speeded the process,
I was wrong to dismiss the possibility without even trying ,
As I have successfully polished and shaped Ruby, sapphire and quartz buy hand on diamond sharpening pads and wet n dry paper ,, yeah it took a few hours for a few evenings,, but hey,, we were in lockdown.
Thanks for the inspiration to try my friend
Babulal has no idea what he is talking about! I made it quite clear in the beginning of the video that diamonds are usually faceted on specialised equipment - cast laps, claws etc. This video gives the average home hobbyist an idea what it like to facet a diamond on regular faceting equipment. As mentioned in the summery, it's feasible but a folly. Imagine the countless laps worn out, time and effort and what for? A diamond the cost less than the worn out equipment and time. Bababul is also trolling.
@@VintageTimeGems hi cliff , firstly I would like to say I enjoy your channel very much, and in no way was I disrespecting you..
Yes you made it clear you were not using diamond cutting equipment, you were showing what can be achieved on the gear you had, I did not agree with the comment you were attempting to put people off trying .
This is my first experience of trolling,, I feel both a little stupid with myself and horrified for you,
Your intentions were honest and I think bublars comment must be born from jealousy.
I look forward to learning from your next video, I have also learnt from this experience that some people are just negative and should keep their opinions to themselves, ,
Please keep making videos, I love your channel and your style
Thanks for showing its possible at all! Looks like I'll have to get into cutting diamond tips for record lathes, as there is basically no one left making them. As the size is much smaller then for jewelery, I assume its gonna be much more reasonable to do. Just gotta figure out how to get the precision while not breaking the bank...
I am also interested in cutting diamond for my record lathe. Did you make a start on this?
Hi
Can u help me. What kind of stone
What's the cutting machine called. I need one
You can buy from Amazon.
People ask me all the time if/when I will cut any diamonds. I always try to explain Mohs hardness but always to no avail. I was terribly curious whether you would actually stick to this project or not and frankly I’m surprised you made even that much progress. Cheers Cliff🍺
Babulal -yes perhaps a bit misleading. I would never even try to cut a diamond on my equipment as it would probably wear out my laps quickly and get me nothing to show for it. I rather hope he was only doing this to show lay people the reason we leave diamond cutting to their own trade.
@@whackidoodle Hi Chris, Babulal has no idea what he is talking about! I made it quite clear in the beginning of the video that diamonds are usually faceted on specialised equipment - cast laps, claws etc. This video gives the average home hobbyist an idea what it like to facet a diamond on regular faceting equipment. As mentioned in the summery, it's feasible but a folly. Imagine the countless laps worn out, time and effort and what for? A diamond that costs less than the worn out equipment and time.
Vintage Time- yes indeed Cliff. I assumed he was thinking he would witness a fully cut diamond as result of watching the whole video just based on your title alone. I appreciate the lengths you go to to keep our interest. Even cutting a worthless garden stone! 🤣 Don’t sweat the trolls man-you provide great content and it costs us nothing 👍🏼
@@whackidoodle I always wanted to find out what it would be like to try and facet a diamond. Now I know. Most gem cutters like myself would be thinking the same. This video gives the viewer a general idea how difficult it is as a home hobbyist to facet a diamond. Cheers
Genius video.. I hope next ruby burma.
Thank you Derend.
Me too, I thought of faceting a diamond to save money but its gonna be a bloody long time. I guess its either I buy a good quality grade then grind on that or dont do it at all
PS. I have been to Australia twice ! What a beautiful place .
Can I ask about black diamond?thoues diamond can connect the magnet.
Wanderfull diamond show,now I got one similar black diamond with me in PNG I am will watch up to you
Very Nice💎💎💎💎💎
Just out of curiosity, what type of machine do you use for faceting?
An Australian machine called a "Facetstar"
Hi where to buy and sell black diamond
Nice information
Just a thought but using 30% hydrogen peroxide instead of simple water for the coolant(with gloves) may speed up the grinding .
At the grain level , the impact site get very hot for a few microseconds so it could create localized chemical combustion when combined with H2O2.
It could use up the abrasive pretty quickly though.
Would that destroy the lap?
@@VintageTimeGems I kinda wanna know 2 lol incase I start
@@VintageTimeGems Well 30%H2O2 is a mild oxidizer at room temperature so i dont think so unless you soak it for days but for testing just put a drop on the lap and look for signs of oxidation.
You will find more info on this compatibility chart marketing.industrialspec.com/acton/attachment/30397/f-0034/1/-/-/-/-/hydrogen-peroxide-material-compatibility-chart-from-ism.pdf
Also wear gloves and googles because H2O2 can be quite irritating for the skin and even more for the eyes (but it is not toxic so it can be disposed in the drain)
I am not a facetter so i don’t know the materials that compose the lap, if you could tell me I will give you a more precise answer.
This idea is inspired by a lapping method called chemical mechanical polishing (CMP) used in IC industry to polish silicon wafers with hard coating on it (silicon nitride for example).
Maybe using an abrasive made of a softer oxide (for example Alumina) would give better results as it will not be consumed by the oxidation, in this case all the polishing will be performed by the oxidation reaction.
@@VintageTimeGems just found an article about polishing diamond with H2O2, apparently using silica as an abrasive works well
www.sciencedirect.com/science/article/abs/pii/S0927025618307122
That's actually amazing how hard ithat is.
I think you are cutting across the the grain, if you cut with the grain it will cut faster. That is why many diamond faceting heads will swivel 360*. Think of it as a wood board, the grain is softer with the grain and harder across the grain.
i have pice i think is diamond black is shining like black or color seem as dark grey its not magnatic
in shining all part is shining even dark part when i change angles it also shining
i use glass loupe i see many color in shining
please any one can consult me i want buy it
Wow! That's harder than calculus. Nice video though. Thanks my friend.
Hi John... Babulal has no idea what he is talking about! I made it quite clear in the beginning of the video that diamonds are usually faceted on specialised equipment - cast laps, claws etc. This video gives the average home hobbyist an idea what it like to facet a diamond on regular faceting equipment. As mentioned in the summery, it's feasible but a folly. Imagine the countless laps worn out, time and effort and what for? A diamond that would cost less than the worn out equipment and time.
Cool.
Now I just need a diamond.
And all the equipment.
And all the tools.
why did I even click this :(
I think corundum is the hardest thing I'd be willing to cut at home. Diamonds are beautiful and all, but the combination of wearing my laps down to cut one stone and the risk of catching a cleavage plane and breaking it would drop it firmly in the "not worth" category. I appreciate you showing it either way though.
Yes. I have stone already cutting.
Hello sir how to sell my black diamond?
Hi.. Where you got the disk? And only use 600?
You can buy a 600 grit disc on Ebay.
Waal thanks for the video l mine green tourmaline stones in Zim.Teach me to cut it.
I’ve seen diamond cutters in Asia working on fairly simple looking machines but I guess they are specialized equipment and their experience makes it look easy.
Babulal I saw them training very young people on tiny flawed stones at first then gradually better very small stones for very little pay but it was a better job than they could get elsewhere. They worked their way up to cutting bigger & better stones. However the skills and equipment only seemed focused on round diamond cuts.
@@Babulal-nz8ii OK....See how many topper laps you wear out. I was not only demonstrating on a typical machine most people own. And if you listened carefully I explained higher speeds and cast iron laps and a claw is usually needed.... USE WHAT I USED and then comment.
@@wdwerker Babulal has no idea what he is talking about. You will need a cast iron laps, maybe selective diamond pastes. Imagine wearing out a heap of topper laps at the rate I was faceting? It would cost a fortune in worn out laps.
did it feel like it was generating heat ?
Hi Ray, yes I felt slight warmth while faceting. The water does keep it cool. Cheers
Saya punya bahan batu berlian mentah warna kuning&putih..saya mau jual kemana&kepada siapa??
:) Good information
Good minerals !!!!!
im so glad youve made this video and put your experience out here. i have been thinking of getting a diamond to cut on my machine but i would definitely need to upgrade my motor on my machine first
Very good
Thanks Cliff for showing us this. I always wondered if I could cut diamond on my machine but I will not bother.
I saw diamonds being cut in India and you are right a cast iron lap and much faster rpm from the sound it made.
Thanks Brij77 it's possible to facet a diamond on a machine, but the wear and tear and the time makes it not worthwhile.
Thank you.
You're welcome!
How much is the 600 grit diamond cutting disc costed in AU ?
About $12-$15 AU on Ebay
Your problem isn't your machine. Your problem is that you're not using the right material to try and cut the stone with. You need to use diamond powder to cut a diamond with. Think of the way you polish your stones using diamond powder but with lower grit size for the powder. Get the right material and you will be amazed and just how quickly you can cut and polish a diamond. I watched a guy in India cut one and go from a rough stone to finished gem in just a few hours back in the early 1980s
Wrong. He IS using diamond power, but without a specialized machine spinning at 3,000 RPM... fuhgeddaboudit.
To be continued....yes a diamond , who dosen't love a diamond?
I wish they were easier to facet Diane.
Hi, what is your email address I am looking for a diamond cutter to work with in Australia since I have a dozen of rough black diamonds available.
Traducirlo al Español . No podemos. Muchos disfrutar i aprender de lo que el explica. Sobre esas gemas i su trabajo?
Hi, there are harder materials than diamonds.
Prof. Friedrich Mohs didnt know the time he made this grading scale.
Wikipedia
Also did find out that glass, zirconia and some other stones not give a reaction on a diamond tester.
Thank you, very inspiring. I wonder if using nano carbon powder would work?
@@Babulal-nz8ii Is trolling- Babulal has no idea what he is talking about! I made it quite clear in the beginning of the video that diamonds are usually faceted on specialised equipment - cast laps, claws etc. This video gives the average home hobbyist an idea what it like to facet a diamond on regular faceting equipment. As mentioned in the summery, it's feasible but a folly. Imagine the countless laps worn out, time and effort and what for? A diamond the cost less than the worn out equipment and time.
Hi Brad, I have no idea if nano carbon paper would work. Cheers Cliff
I doubt nano carbon would work as it is not the ultra strong laayice as a fiamond. Just because is is carbon dies not make it hard or abrasive. In one arrangement carbon atoms are flat sheets making up graphite are very low friction form. Even Bucky balls do not have hardness in abrasion form though are VERY strong.
The quality of the diamond in those electroplated discs from China is very very poor. You would need a cast iron lap with Debeers diamond powder to cut it in a somewhat reasonable time. Also try mixing the CA glue with graphite powder to strengthen the hold and to help with heat.
nice diamond !
Thank you.
thank yon
Respect
Sir meron po ako black diamond pnu ko po ito mabebenta
Folly? Seems like something constructive and creative to do in all these covid lockdowns! Also very jealous of the lapidary equipment readily available to you folks down under, in the UK it’s either make it yourself or sell an arm and leg to afford the stuff, that’s before you even get to the raw gems!
Maybe a imported machine from the US would be cheap? Or buy a cheap Chinese machine and modify it.
Great stuff but brotha, you need to moisturize those fingers for the close up 🤣🤣
I have a Kohinoor rough diamond and hope rough diamond
👍👍👍👍. good . job
Cutting diamonds is apparently also important to consider the source of diamond. The Argyle diamonds of Australia apparently formed deeper in the earth and are harder than African and most Russian sourced diamonds. Yes even diamonds have an apparent range of hardness greyer than the 9 Sapphire/ruby to 10 Diamond gradation.
Further the rough forming is normally done using other diamonds not a lap. Many gems are cut ising teo lower grade stones. Plus the polishing gits need to be of same or harder than generic type as the diamond being polished. This is information I was given by a manufacturing jeweler doing mainly Argyle stones.
Thanks for the info...I think I will just facet other gems.
Using powder of diamond.
This business made me rich
Like muito bom gostei l fron Brasil man Diamond Yes good
Oh my, diamond really is impossibly hard, isn't it? Kudos for trying though, Cliff!
Thanks Kathy. I'll stick to faceting other gems.
I have One black diamond
I have black diamond
Good
Thanks
Needs tons of patience. No good for me. Thanks for the video !
Babulal 🤔
@@johanj701 Babulal has no idea what he is talking about! I made it quite clear in the beginning of the video that diamonds are usually faceted on specialised equipment - cast laps, claws etc. This video gives the average home hobbyist an idea what it like to facet a diamond on regular faceting equipment. As mentioned in the summery, it's feasible but a folly. Imagine the countless laps worn out, time and effort and what for? A diamond the cost less than the worn out equipment and time. He's just trolling.
@@VintageTimeGems All cool. I just skipped the video fast to see the end result missing the dialogs. I like minerals but just to watch at the moment. I need a bigger space and time to touch it. Added to do list. Cheers.
CLIFF, as a prospector it,s my job to find them not to cut them, yup i deffinately dont have the skill to cut a diamond. i,ll leave that to some one more skilled then i am
Hi there yooper man, Diamonds are best left to specialist cutters. They are way to hard and tough to be faceted on my machine.
@@VintageTimeGems i,m still looking for the extinct valcano pipe that is supposed to be around me some place, so far i found a little gold a little copper a little iron and a whole lot of rubbish that i picked up took to the land fill but no diamonds yet i still have hope in finding some
Commenting just to know where this is for future reference.
Saya
Diamantes das estrelas.3000reais o kilo mhos 10 autenticos
👍👍❤️❤️💎
Saya punya 4 buah lk 5ons batu hitamdiamon ada yang minat balas komen saya...
Show
Like 57. Brasil.
Thank you! Cheers!
Vendo por kilo 3000reais bleck diamond fancy
You cannot facet diamond with this machine lol
Whats the intro music at the begining
What lapidary are you using?