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Historic Pink Diamond Find Focuses New Attention on Rare and Beautiful Gemstone
The huge new pink diamond just lately found at the Argyle Diamond Mine in Australia is certain to carry renewed attention to this uncommon gemstone. The stone called the “Argyle Pink Jubilee” is 12.76 carats, the most important pink diamond ever found in Australia, and is expected to fetch up to $10.6 million when it's offered on the company's annual Pink Diamond Tender.
Pink diamonds belong to a very exclusive membership – the category of colored diamonds referred to as “fancies” by the commerce. And, many gem connoisseurs consider vivid pink fancies as first amongst equals.
Pinks first garnered attention again in the 1980s after they were found by the Argyle Diamond Mine Company. Previously, they had been virtually unknown.
It's estimated that the Argyle mine sells up to ninety five% of the world's pink diamonds. And, the Argyle pinks are coveted for his or her intense shades of coloration ranging from delicate pastel rose to strong raspberry and full-blooded purple reds. Although some pink diamonds are sourced in India, Brazil and Africa, they're sometimes gentle in color and pale even further when compared to an Argyle pink.
As an indication of how valuable Argyle pinks are, they have been privately bought for as much as $1 million a carat. In 1989 a three.14 carat Argyle pink offered for $1.5 million. In 2009 a 5.00 carat cushion cut vivid pink was offered at auction for $10.eight million.
In addition to its magnificence and rarity, the Argyle pinks are a thriller to science. No one really is aware of why the color occurs.
Most gemstones are colored by an impurity. The presence of boron in a diamond, for instance, may give it a colour ranging from “ice blue” to gray-blue to deep darkish peacock blue. The presences of mitogen can color a diamond yellow, golden or green. In another instance, chromium may give corundum (ruby) its pink or deep crimson colour whereas iron or titanium offers corundum a blue coloration we name sapphires.
However, nobody really knows what causes the color in Argyle pinks.
One concept is that the pink color is attributable to a distortion in the diamond's crystal lattice because of heat and stress throughout or after the stone's formation. The concept is that the heat and strain displace carbon atoms from their normal positions thereby altering the qualities of light mirrored by the diamond.
The Argyle Pink Jubilee is being compared with the Williamson Pink heretofore considered essentially the most excellent pink in existence. That 54.5 carat rough diamond was found at the Williamson diamond mine in Tanzania in 1947. The mine's owner, Canadian John Williamson, gave the unpolished stone to Princess Elizabeth upon her engagement to Prince Phillip. (After reducing and sharpening, the 23.6 carat Williamson was set in a diamond petal brooch by Cartier in 1952.)
Argyle Diamond Mine says that planning the reducing and polishing of the Argyle Pink Jubilee will take up to two months and has already started. It says the actual polishing will take about ten days and will likely be executed by Richard How Kim Kam who has worked for Argyle for 25 years and considered one of many top skilled diamond polishers on this planet.
The Argyle Diamond Mine is also famous for its brown diamonds, referred to as champagne or cognac. The Mine can be noteworthy for being the primary mining firm to announce it will not extend its contract with DeBeers. This was back in 1996 and one of the first milestones in breaking the cartel's iron grip on the diamond market.
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