The passion for fancy colour diamonds has yet to show signs of slowing at recent international auctions, fetching impressive returns. A fancy colour yellow diamond ring was the headline…
The International Gemological Institute (IGI) has announced the development of a new process for separating natural and lab-created fancy colour diamonds. The IGI has detailed a method for screening…
Gemological Science International (GSI) has issued a warning about an increase in lab-created fancy colour diamonds presented as natural diamonds. In a statement released on 6 February, GSI stated…
Rinto Tinto sold 87 fancy colour diamonds sourced from Australia and Canada at the latest Beyond Rare tender. The collection – named ‘Born of this World’ – consisted of…
A pair of fancy vivid orange-yellow diamond earrings will be the headline act of an upcoming Christie’s auction in New York. Known as the California Sunset Diamonds, the earrings…
The largest vivid yellow fancy colour diamond discovered in Canada has been cut into two remarkable emerald-cut stones by Tiffany & Co. The 71.26-carat rough was discovered at the…
Rio Tinto has outlined plans for a tender showcasing polished pink and red fancy colour diamonds from the iconic Australian Argyle Mine. Known as the ‘Beyond Rare Tender’, the…
One of the world’s largest blue fancy colour diamonds, the Infinite Blue, has sold at Sotheby’s in Hong Kong for $US25.3 million ($AU39.78 million). The 11.28-carat fancy vivid blue…
A recently published scientific report may contribute to the discovery of new deposits of the world’s most valuable gemstones – pink fancy colour diamonds. In a paper published in…
Sotheby’s Hong Kong is offering the 11.28-carat ‘Infinite Blue’ diamond on 5 October in a sale that may generate as much as $US37 million ($AU57 million). The Infinite Blue…