Lab Created Diamonds Come to Market 578
E writes "Technology is putting some new sparkle in the world of diamonds. Until recently, naturally occurring, mined diamonds were unchallenged in their quality and desirability. But now laboratory-created diamonds, which possess the same properties as naturals, are poised to give them a run for their money. A new company, Adia Diamonds, has quite the variety in their inventory. They have the same chemical and physical properties as a mined diamond and come in white, blue and yellow. Both GIA and EGL grading labs are offering certifications for lab created diamonds. Seems like a good, high-tech alternative to the DeBeers diamond cartel."
anything is a good alternative to DeBeers (Score:5, Informative)
Lab manufactured diamonds is an interesting concept, but if DeBeers gets its metaphorical finger in machine, it will ensure these diamonds either never get manufactured, or if they are manufactured never hit the marketplace with the name "diamond". The DeBeers monopoly is too dear and too powerful for disruption like this.
You can argue the "blood diamond" political aspects of the diamond mining industry, but even tossing that aside DeBeers' behavior and domination and control of the diamond industry transcends any other monopoly. There's a reason DeBeers isn't a U.S. company (among many others...), DeBeers' monopolistic practices and domination and heavy handed control of the diamond market would not likely pass legal muster in the U.S.
If you ever get a chance (/. "girlfriend" jokes aside), buy the lab diamonds, or buy your to-be a genuinely rare gem such as a Ruby (diamonds are not rare).
The sooner the myth that is diamonds is de-mythed, the better. Read more about diamond myths here [diamondcuttersintl.com].
A great article on the subject (Score:5, Informative)
Wired had a great article [wired.com] on the subject of synthetic diamonds a few years ago. An excerpt:
Re:Natural Complexity (Score:5, Informative)
Much more detailed article (Score:5, Informative)
One thing to keep in mind is that saying the lab-created diamonds possess the same qualities as natural diamonds is a little misleading. They are certainly diamonds, in that they are the same type of crystal form of carbon, but they *are* distinguishable from natural diamonds.
What I find very interesting is just how expensive and advanced equipment needs to be to tell the difference, and how much Debeers is shelling out to ensure that the biggest diamond testing labs have that equipment. Check out the linked article for more on that.
If you want to do something about challenging the DeBeers cartel and their questionable business practices, check out Canadian Diamonds [canadadiamonds.com], also here [aurias.com] and here [polarbeardiamond.com].
Indistinguishable? (Score:5, Informative)
He also told me how to tell an artificial pearl from a real one -- the real one, he said, will dissolve in vinegar. Strange sense of humor he had.
Re:Real importance beyond jewelry? (Score:5, Informative)
* mass spectrometry might do it by detecting certain trace elements, but in the end all diamonds are nothing more than tetrahedrally bonded carbon.
Re:Indistinguishable? (Score:5, Informative)
Of course you would not want to dissolve the whole pearl. That would be silly.
Re:Real importance beyond jewelry? (Score:2, Informative)
Re:Natural Complexity (Score:4, Informative)
They had a Belgian diamond expert examine one of them, and he was fooled. The industry had to create new types of testing just so that experts can pick these out. There's no uncanny valley here. They're real diamonds, just mass-produced.
Re:Much more detailed article (Score:3, Informative)
These are not cheaper! (Score:1, Informative)
Caveat - they only had one white diamond. I do not know if their gigantic 3 carat stone would be significantly cheaper than the natural alternative.
http://www.adiadiamonds.com/diamond.php?diamond=A
Price: $1,505 ($2,640 per Carat)
SKU: ABE138
Shape: Round
Weight: 0.57 carat
Color: E
Clarity: SI3
vs Shane Company
0.58 carat E color
$150 more but better quality and slightly bigger
or
0.59 carat E color, I1 (more imprefections) for $1,280
More inclusions but lower price... eh
Re:Real importance beyond jewelry? (Score:5, Informative)
Not clear which process makes these. (Score:5, Informative)
It's not clear from the Adia diamonds whether these are grown like semiconductor wafers or made in high-pressure presses. Gemesys [gemesis.com] has a Florida plant making gemstones in high-pressure presses. They finally caved in to deBeers and laser-engraves their stones with some ID information. The FTC caved in to the diamond industry and insists they be called "cultured diamonds". They're distinguishable from natural diamonds by their absorbtion spectrum, and deBeers has a tester for this [gemesis.com]
Grown synthetics were still experimental when Wired wrote their article, but that's the more promising process. Those, in theory, can be indistinguishable from natural ones.
The diamond industry had painted itself into a corner with the concept that the most valuable diamonds are "flawless". You do not want to be in that marketing position when going up against the technology that makes semiconductor wafers. Look for PR about how real diamonds have "natural flaws".
Tied to this is the "Kimberly Process" [wikipedia.org], the agreement supposedly intended to restrict the flow of conflict diamonds. This requires source documentation to travel along with diamonds as they pass through the distribution chain. Previously, diamonds were generic; nobody cared where they came from. The Kimberly Process has the effect of making it much harder to insert large quantities of synthetic diamonds into the distribution system.
Incidentally, most industrial diamonds have been synthetic for years. Annual synthetic production is around 600 metric tons, most of it in the form of abrasive grits for cutting wheels and such. When you need to cut a slot in concrete pavement, you use a diamond cutting wheel.
Re:Real importance beyond jewelry? (Score:5, Informative)
Re:Ambiguity (Score:3, Informative)
Re:The purpose of the diamond ritual... (Score:5, Informative)
A lifetime ago, the ideal was that a "good" girl would wait until marriage, but in practice many women with normal libidos compromised on waiting until engagement. This led (duh) to guys proposing in order to get laid and then for some reason changing their mind about actually getting married. Laws were actually passed to protect women against having sex with dishonest people.
The ring, then, he argues, was a nonrefundable deposit to provide some evidence that the guy would actually go through with the marriage.
Re:Indistinguishable? (Score:3, Informative)
I had two followup posts.
One of them says where you can buy man-made diamonds (guess you'd want to add http://www.adiadiamonds.com/ [adiadiamonds.com] to the list)
The second followup sums up what I gathered from a PBS link (circa 2000) someone posted.
Essentially, synthetic diamonds are UV reactive because their atomic structure is different from natural diamonds. The PBS documentary link said that this problem with atomic structures would soon be overcome.
So AFAIK, right now, the only ways to tell synthetics from fakes are (A) they are flawless* or (B) they fluoresce.
*A natural diamond is "flawless" if there are no visible flaws under 10x magnification. Synthetics are (I assume) literally flawless under much higher magnifications.
Re:Real importance beyond jewelry? (Score:5, Informative)
And then of course, the classic Atlantic article [theatlantic.com] about the DeBeers Diamond cartel, and how the manufacture need.
If diamonds are so special, how come they're 20x more common than sapphires but come at such a high premium?
Pearls (Score:5, Informative)
Re:Indistinguishable? (Score:5, Informative)
Check it out:
http://www.adiadiamonds.com/content/frequently-as
This cannot be (Score:3, Informative)
The funny things is I did indeed fabricate diamond : I was in a french labor during the early 90's which studied such stuff. They looked more like glass or plastic than diamond
Ruby ? CHEAP ! (Score:3, Informative)
Re:Real importance beyond jewelry? (Score:5, Informative)
Right you are.. and here's the book to prove it:
The Diamond Invention [edwardjayepstein.com]
Re:Consulted with my wife about this (Score:3, Informative)
I don't know the details of how they're made or any other technical details. All I know is my wife loves her ring and no-one can tell the difference with a naked eye. Even jewlers comment on how lovely it is when she window shops.
Occasionally someone will ask if it's real, to which she responds "of course it's real. It's certainly not imaginary.". People tend not to ask any more questions after that.
Shitdrummer.
Re:Consulted with my wife about this (Score:3, Informative)
In my search for a man-made diamond, I've become quite adept at seeing through marketing bullshit (if I do say so myself). Keeping that in mind, I carefully looked through Gemolite's website.
I hate to break it to you, but based on the description [gemolite.com.au], Gemolite isn't not diamond at all, synthetic or otherwise. Here are the key quotes:
All diamonds are equally hard; therefore, a Gemolite can't be a diamond.
Lucky for me, I almost am a scientist, so I do understand them. What we've actually got here is a compound with a cubic structure that is not as hard as diamond. Therefore, I'll guess that what Gemolite really is is cubic zirconium [wikipedia.org]. (I would have also guessed that it could be silicon carbide [wikipedia.org], but the variety of that used for gemstones has a hexagonal (rather than cubic) structure.)
Re:Artificial scarcity (Score:3, Informative)
Emm, they can be made synthetically, pretty cheaply I think. I would not pay lots of money for something which has so little claim to being scarce. http://en.wikipedia.org/wiki/Sapphire [wikipedia.org]
Re:Much more detailed article (Score:3, Informative)
They have been selling clear man made diamonds for a year at least.
"Inwestment" in a diamond? Phffft.... (Score:3, Informative)
Re:those don't look like diamonds (Score:1, Informative)
D is colorless, and it is naturally rare. D-F are in the colorless range. H-I have slight color. J's on the edge. If you mount a stone in platinum, color shows up more, so you want a better color grade. If you mount in gold, you have slightly more leeway.
Beyond that point, color is deemed bad. Until you have a LOT of color, which becomes quite rare again. Then you entered the realm of "fancy" (or vivid color) diamonds. The basic scale is:
faint -> very light -> light -> fancy light -> fancy -> intense -> vivid -> dark -> deep
So, the diamond you point to is a vivid yellow fancy diamond. A natural stone of that color costs more than a colorless stone would. It is legitimately more rare. Since this is synthesized cost-effectively, it can be purchased for much less than either a natural colorless or fancy yellow diamond would cost.
As was pointed out, red is the rarest. A natural red diamond costs about a million dollars a carat. A natural blue diamond merely about $200,000 a carat. This company is selling blue diamonds for about $6,000 a carat, which puts them in the realm of comparable quality natural white diamonds. Still not cheap, but within the price range far more people can afford.
Re:this is good on so many levels (Score:3, Informative)
diamond has the best thermal conductivity of any solid [wikipedia.org]
but I wonder how they would form the fins...
Re:Real importance beyond jewelry? (Score:3, Informative)
This isn't news (Score:3, Informative)
See this [wired.com] for a good article (and it's from 2003).
You can even buy them here [diamondnexuslabs.com] or here [gemex.com], or just read the wired article and check up on the companies mentioned in it.
Re:Real importance beyond jewelry? (Score:5, Informative)
Actually that tester tests the thermal conductivity of the stone. Cubic Zirconia is virtually indistinguishable from diamond. A really well trained gemologist can tell the difference some of the time, but not the people who work in jewelry stores.
OTOH, diamond has a very high thermal conductivity and cubic zirconia does not. When CZ first hit the market, jewelers really flipped out, because people could buy diamond rings, replace the diamond with CZ, and then return the ring with the CZ for full price. At first, the only surefire test was to measure the density, but that required removing the stone from the setting, something that takes some time. The company that created CZ then also produced a tester which at its tip had a small heater and a temperature probe a little ways away. If you touch the tip to a diamond, heat will transfer from the heater to the probe, whereas with a CZ, it will not. The company made more money off the patent for the detector than they ever did off CZ.
Of note, a few years back, a new lab-created diamond alternative hit the market: Moissanite. It is a form of silicon carbide, and it actually has a higher index of refraction than diamond (it sparkles more). It also has a high thermal conductivity, so it would fool the old testers. Moissanite is easier to distinguish from diamond under a loupe, however. It is birefringent.
Re:A great article on the subject (Score:3, Informative)
Especially when one branch gives deBeers a favorable ruling like the FTC's while anothe branch, Department of Justice, has standing arrest warrents out for deBeers execs. Ever since the 80's, DOJ has been trying to charge deBeers with monopolostic practices but none of the officers will cooperate by setting foot on American soil.
Re:Real importance beyond jewelry? (Score:4, Informative)
Re:Indistinguishable? (Score:5, Informative)
As far as I can remember the main problem they were encountering was Nitrogen. In a natural diamond which forms over a long period of time the nitrogen atoms would drift together over time and end up clumped together and form a seperate molecule (N4) of pure nitrogen embeded in the carbon lattice. This nitrogen molecule absorbed some light from the carbon but was otherwise undetectable.
In the early attempts at making artificial diamonds they left the nitrogen in but it did not migrate together so ended up actually part of the carbon lattice. This gave the artificial diamonds a slight yellow tint as the nitrogen also emitted light back into the diamond crystal lattice. The Russian solution was to remove all the nitrogen at the start of the process.
This produced perfect, pure carbon diamonds with a perfect crystal lattice. These diamonds however had a the property of trapping light so that when the light falling on them ceased (you switched the light off) they fluoresced, giving off the light they had been trapping with in the crystal lattice due to total internal reflection. Now this may have made them really cool but it did make them different to naturally occuring diamond.
What the Russian team really needed was a way to leave in the Nitrogen impurity but so that it did not ever interupt the carbon crystal lattice.
At this point De Beers was already shitting themselves and started looking at ways of marking there diamonds to prove they were mined diamonds not some knocked up in a lab. They semed to have a number of ideas such as laser etching the DeBeers trademark on each stone and similar but I dont know what the ultimately chose.
If someone has some more info, please post it but don't start it with your dad, grandad, etc used to be jeweler as this just makes it hopelessly outdated. These new lab made diamonds are not like anything De Beers have had to deal with before (Cubic Zirconia, etc) as they are actually made of carbon which is formed into a diamond lattice using super high pressures but in a lab rather than underground.
This information came from some sort of TV documentary I saw a number of years ago.
I did however just throw some stuff at google and this is what came back -
http://www.bbc.co.uk/science/horizon/2004/diamond
(Please note - my summary is from memory so the info on the above link will be better.)
http://www.russianbrilliants.net/introduction.htm
http://www.sciencedaily.com/releases/1999/08/9908
http://www.wired.com/wired/archive/11.09/diamond.
talk about a monopoply! (Score:2, Informative)
Re:Real importance beyond jewelry? (Score:2, Informative)
Diamond Semiconductors (Score:2, Informative)
not as jewelry but as conductive material for the next round of semiconductors...and therefore powering future generations of high
speed processors and electronics. The properties of diamonds lend themselves better in many respects than silicon in dealing with
high temperatures and harsh environments. Fascinating! Here are a couple links:
http://en.wikipedia.org/wiki/Synthetic_diamond#App lications [wikipedia.org]
and
http://www.geek.com/news/geeknews/2003Aug/gee20030 827021485.htm [geek.com]
Re:anything is a good alternative to DeBeers (Score:2, Informative)
Re:Real importance beyond jewelry? (Score:2, Informative)
In case of an emergency, such as an injured finger, Emergency Medical Technicians, Fire Departments, and Hospital Emergency Rooms can quickly remove titanium rings.
We hear false claims from jewelry stores that titanium can't be cut. Many jewelers spread this rumor when titanium started to weaken their sales of more expensive bands. If titanium could not be cut and drilled, we wouldn't be able to make our rings using standard high-speed steel tools!