Diamond the black surface is the carbon bonds broken up

amazing to a laser cut a diamond though. it was over the top the music was ridiculous

Thank you for saving my keyboard from angry and hard typing.

Yeah fuck diamond industry

It's not a rock. It's a mineral.

Thanks for the insight!

Dang, beat me to it. I was going to mention the pretty green color also.

You're like Walt from breaking bad 🤯

😂

@@synova8354 ok, but does 😂 mean I'm laughably wrong, or that I'm on the right track??

🤣

I literally laughed out loud... well done!

😂😂😂😂BUMP

Ahaha

I have dimond

I totally agree to that. Leave it in it's natural state

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"ALL NATURE IS GOOD AND MAN CHANGING ANYTHING IS HORRIBLE!" Live by your convictions. You should be walking to work from your patch of unchanged ground, or shutting up.

@@StuartGray Right, because I think high quality uncut gems are astronomically more beautiful than the same cookie cutter designs I must be some radical hippie who condemns all mankinds labors. I'm not. I just think cut and polished diamonds look generic, boring as hell, and ultimately quite cookie cutter. Not to mention the fact that polished diamond has the visual properties of well polished *glass* unless you are highly trained and using magnification.

@@InvictusByz Everyone else in the world sees the beauty in the cut gem and the way it plays with light. You though think a cloudy rock is more beautiful. How in touch you are with nature.

@@StuartGray Right, everyone thinks cut diamonds are just the greatest! That's why the diamond market has consistently expanded to match the growing population of cut diamond loving, economically active population! Except... oh golly looks like it hasn't! In fact, the size of the global diamond jewelry market hasn't increased noticeably in around 10 years. If you want to see light do cool things get some cut glass. Maybe a nice optical prism. Maybe a whole set!

@@InvictusByz I don't give a fuck about diamonds. I do realize, just like everyone else that if you are looking at a diamond. A cut one that captures and plays well with the light is superior in looks to a milky, fractured, expensive rock. It is not hard or complicated and does not require a doctorate in gemology to understand. The only way to not know this is if you are one of those people that need to feel superior and only has the depth of character to pull it off by pretending being contrary makes you superior. It works sometimes till you fuck up and do it somewhere that there are no even subjective positions to make it right. You are just a little person who stroked your ego by saying contrarian, dumb shit online.

@Draziw Drow I'm sure it's nerve-racking. I bet each cut is decided by a committee. That being said it's still possible for operator induced errors. It would be hilarious if the entire thing just exploded into worthless dust.

Great work

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Thanks!

Yes sir, just recently got into opal polishing as a side hobby, hoping it’s profitable

I agree the only man made value to this is its size. And they just stuffed it by cutting it. Black Opal is gem king to me. No 2 are the same and play of colour is a knockout.

Is just carbon .

@@davidconiglio7577 that applies to the whole thing 😂

@@jbond119 well when transparent is diamond like I cook and did burned pasta is now carbon .Thank I did laugh too .

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Minas Gerales! Show, muitas pedras preciosas de aí para o mundo, obrigado!

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I've seen your comments around since we seem to subscribe to the same kinds of channels, even the rare ones like RadiumQuetzal, Nick Moore, and Zenodilodon! Anyway, you have 'tuned in' to some very interesting and subtle effects in these laser diamond cutting videos that I just recently noticed here too. First, it's clearly a doubled Nd:YAG system. I've seen the green color hundreds of times and it's just obvious. Second, look at the color of the beam at 3:05, it's bright cherry RED, but the clue here is that everything else in the shot is amber! It's being shot from behind the laser safety filter glass/plastic in the door! The safety filter is totally blocking the 532nm green fundamental line of the doubled Nd:YAG. So where is the red light coming from? ...It's RAMAN SCATTERING!! I've never actually seen this before but I'm certain that's what it is. The O-H symmetric and asymmetric stretching modes of the water molecule cause a Raman shift of 3410 cm-1 or 118nm. 532nm + 118nm = 650nm, or deep red light. In some shots taken from inside the chamber and on the other side of the filter window the beam appears yellow because green 532 + red 650 = yellow. In fact, I suspect there may even be some Raman lasing going on 650nm due to whispering gallery oscillation modes in microdroplets of the water jet as it breaks up some distance from the outlet probably due to laminar-turbulent transition in the flow, see "Raman lasing near 650 nm from pure water microdroplets on a superhydrophobic surface" by Kiraz et. al. 2009. I think some of the shots appear mostly green and not yellow due to exposure levels on the camera being stopped down and reducing the amount of red Raman light available for the image, preferentially showing the much more intense green. Just a guess but the green shots appear much darker overall than the yellow ones.

Yeah the video is confusing, why cut such a large piece off?

Right, next they’re going to present the finished product and say “it’s the largest asymmetrical oblique random-cut black-faceted diamond in the world!”

I propose to contact a jeweler.

Hi, you can find all our diamond cutting systems on our website: www.synova.ch/products/diamond-cutting-systems.html

Merci 😀

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Both, the laser beam is focused by the water to give cleaner edges with less burs and no beam divergence

@@rileymannion5301VERY well written (wish I could do that!) think 99.9% of public would simply fail to respect NO BEAM DIVERGENCE... if the light beam effectively made a cut not 90 degree to source tip then the further away the intersection point from the source the greater the loss angle eg 88 degrees, further way 85 Degrees... the result would be an ARC curved cut - both left & right away from vertical centreline... then thicker cuts may be 0.5mm wide at edge very near laser beam source & 3.0mm wide at back of cut... the arc would loose more valuable diamond mass & affect how expert polishers planned their cuts... apparently they can spend WEEKS eg 100 hours cutting as its hard (Rockwell hardness scale) & very shallow cuts & FLAT faces needed at end of job to know how light into jewel will behave - sparkle “nicely”. I find cutting for 2 hours frustrating “stress” imaging 100 hours & 1 hour from finish - smash!!

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Thanks

Hi, please complete our contact form in order that we can get back to you: www.synova.ch/contact/headquarters.html

Hello, it depends on what you need. Please contact us via www.synova.ch/contact/headquarters.html to discuss your requirements.

@Guodlca it's interesting, doesn't it become liquid at some point of sublimation?

@Guodlca Interesting!

@Guodlca I don't think it's sublimation. It seems like it removes material through ablation cause by heat erosion. There's nothing you can't burn with a laser.

We are happy to get in contact with you in case of any questions: www.synova.ch/contact/headquarters.html

The machine that cut it would come in handy though - if you could find power for it.

The water jet acts as a optical guide for the laser, keeping it focused deep into the cut (like a fibre optic cable made of water). Without the water jet, the speed, quality and depth of of the cut would not be possible. It’s amazing tech!!

Polishing is a separate step

@@synova8354 well where is its polishing video ?

@@Goldenthegr8 We sell diamond cutting systems. Therefore, our videos focus on this step.

@@synova8354 oh ok

Charcoal ? When are diamonds ever Charcoal ?

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Diamond particles aren’t worth very much since very small diamonds are incredibly abundant. Diamond dust is used a lot in grinding and drilling technology

@@finlaygreenaway193 even large diamonds are insanely overvalued due to artificial scarcity

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yes the slight heat runoff turned a thin surface of the diamond to graphine thus producing that black edge

Funny thing is it's not rare at all, it's just one company debeers controls most of the diamond supply so they can create false scarcity, get a real cool gemstone like ruby or emerald they look way cooler

ok?

@@rileymannion5301 oihhojjeu!\ccff?

KR chanal look

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@@synova8354 diamante lonsdaleita

Did they all end up with black sides?

@Guodlca thank you so much for the informative reply.

It looks to me like there were(are) many internal fractures or inclusions - which were closely examined and planned for. Most likely SOP (Standard Operating Procedure) any time a large diamond is cut in order to "find" the largest gem "hiding" inside prior to starting the cutting.

wtf is a peace mill?

@Guodlca lol "no heat damage" depends on how you define damage i guess.