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.
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.
