Dubai’s first diamond-manufacturing facility, which officially opened Tuesday, has been tasked with cutting and polishing the world’s most valuable rough diamond ever sold, which weighs 813ct.
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Rio Tinto unveiled its largest Fancy Red diamond yet to a select group of collectors, alongside other gemstones in its annual tender of pink diamonds. Known as the Argyle Everglow, the polished radiant cut diamond weighs 2.11 carats.
A 26-carat diamond ring, bought for $13 at a London car boot sale has been valued at up to $456,000. It is set to be sold on June 7 at a Sotheby’s auction.
A 3-billion-year-old diamond the size of a tennis ball — the largest discovered in over a century — could sell for more than $70 million, auctioneer Sotheby’s said Wednesday.