Rio Tinto Mine Recovers Rare Purple Diamond
Rio Tinto has unearthed a purple diamond weighing 0.45 carats at its Diavik mine, an unusual find at a site that generally produces white stones. A trace element like hydrogen or a twist in the [...]
In Antwerp, Auction, Bonhams, Bulgari, Certificate, Christie's, Colored diamonds, De Beers, Diamonds, Fairs, Fancy Color, Geen categorie, GIA, Gold, HRD, IGI, Jewellery, Maintenance, Marketplace, Mine, Retail, Rough diamonds, Sotheby's, Tiffany's
Posted HRD Antwerp stopt met certificatie synthetische diamant
Het diamantlaboratorium HRD Antwerp reikt al sinds 1973 certificaten uit die de echtheid bevestigen en de kwaliteit van diamanten beschrijven. Sinds meer dan tien jaar deed het labo, dat op vijf [...]
Posted
Marie Antoinette-Related Pink Diamond Top Christie’s NY
An important piece leading the sale is a JAR ring featuring the Marie-Thérèse Pink Diamond, a kite-shaped, 10.38-carat, fancy-purple-pink expected to bring in up to $5 million. The stone, which [...]
In Antwerp, Auction, Bonhams, Bulgari, Certificate, Christie's, Colored diamonds, De Beers, Diamonds, Fairs, Fancy Color, GIA, Gold, HRD, IGI, Jewellery, Maintenance, Marketplace, Mine, Retail, Rough diamonds, Sotheby's, Tiffany's
Posted GIA Moves to Redefine Lab-Grown Diamond Grading
GIA Moves to Redefine Lab-Grown Diamond Grading, Signaling Clearer Divide from Natural Diamonds The world’s leading authority in gemology is redefining lab grown diamond grading by dropping the [...]