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World of the Bizarre

Ridiculously rare violet diamond unearthed

By T.K. Randall
May 4, 2016 · Comment icon 14 comments



The Argyle mine is well known for its unusually colored diamonds. Image Credit: CC BY-SA 2.0 Swamibu
An 'impossibly rare' violet diamond has been found within the depths of Australia’s remote Argyle mine.
Regular white diamonds are an incredibly valuable and sought-after commodity, but in the Argyle Diamond Mine in the remote north of Western Australia, miners have long been finding diamonds imbued with an unusual pink or red hue which are typically worth up to 50 times as much.

Every once in a while however something even more spectacular is unearthed in the form of a violet diamond - something so rare that only a relatively small amount of them have ever been found.

One such diamond, which was discovered back in 2015, will be taking center stage at Rio Tinto’s annual pink diamonds showcase next month - an event for which only 12 carats of polished violet stones have ever been produced in more than three decades.

"Impossibly rare and limited by nature, the Argyle Violet will be highly sought after for its beauty, size and provenance," Rio Tinto Diamonds general manager of sales, Patrick Coppens.

It isn't clear exactly how diamonds like this one acquire their unusual coloration however it is thought to be something to do with a molecular structure distortion during their formation in the Earth's crust.

Pink diamonds, which make a regular appearance at the show, are worth up to $2 million a carat.

Source: Discovery News | Comments (14)


Recent comments on this story
Comment icon #5 Posted by jarjarbinks 7 years ago
On some planets, these diamonds probably grow in a tree
Comment icon #6 Posted by Twin 7 years ago
I wouldn't pay more than $1.5 million.
Comment icon #7 Posted by Varelse 7 years ago
On some planets, these diamonds probably grow in a tree That tree would somehow have to photosynthesize coal at 5500F and simultaneously pressurize to 500000 psi..be one damn cool tree to see.
Comment icon #8 Posted by ChaosRose 7 years ago
It's so beautiful.
Comment icon #9 Posted by ChrLzs 7 years ago
It is a beautiful rock.. and I like the caption to the image "A rare UNCUT violet diamond.."..?? That's funny on two levels. First, that pic shows the stone clearly cut (facetted and polished). Secondly, if you read that caption, it sounds as though they find CUT stones in the mine more often than the rare uncut ones.. Actually, I'd have liked to see the uncut original... and here it is, from ABS-CBN..
Comment icon #10 Posted by pallidin 7 years ago
What do gem cutters do with the bits they cut off of rare stones? Is purple diamond dust more valuable than the regular industrial stuff? "Colored" diamonds have "impurities" which account for color other than pure clear. They are somewhat less hard, but sure are a gem to see, and more rare. The dust of colored diamonds, though used, has less cutting power than that of pure clear diamond dust.
Comment icon #11 Posted by paperdyer 7 years ago
I forget where I originally read this, but the fine folks at wikipedia back up the claim that brown diamonds are one of the most common colors of diamond. They are usually ground and sold as industrial diamonds, but every once in a while they're sold at a good profit as "chocolate" or "cognac" diamonds. I thought the chocolate diamonds were of a leesor quality to "white" diamonds, but you sure can't tell that from the jewelry store prices.
Comment icon #12 Posted by EllJay 7 years ago
Was it this one? Or is this just a stock photo of another violet stone, they used? Either way, this one was a damn beauty,
Comment icon #13 Posted by Alsace-Lorraine 7 years ago
Diamonds are one of the most contrived markets there is. The proverbial "shiny object". Companies such as De beers, and now others, control the market by releasing or withholding diamonds to the market. They have vaults full of them, so do the Russians. Correct, the so called Chocolate diamonds are brown industrial grade. Marketing suckered people into buying them as jewelry,they have very little if any resale value. Caveat.emptor.
Comment icon #14 Posted by EllJay 7 years ago
Diamonds are one of the most contrived markets there is. The proverbial "shiny object". Companies such as De beers, and now others, control the market by releasing or withholding diamonds to the market. They have vaults full of them, so do the Russians. Correct, the so called Chocolate diamonds are brown industrial grade. Marketing suckered people into buying them as jewelry,they have very little if any resale value. Caveat.emptor. Yeah, Russia has a whole hole in the ground that is literally made out of diamonds at the Popigai crater, and as you said; together with the diamonds found in Afric... [More]


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