Colored diamonds

Sotheby’s will offer an 11.28-carat blue diamond in a single-lot Hong Kong auction, where it is expected to fetch up to $37 million. The October 5 sale of the radiant-cut, fancy-vivid blue [...]

The Estrela de Fura, a 55.22-carat Mozambique ruby, sold for $34.8 million at Sotheby’s on Thursday, establishing a world-record auction price for any colored gemstone. Fetching $630,288 per [...]

The Estrela de Fura, a 55.22-carat Mozambique ruby, sold for $34.8 million at Sotheby’s on Thursday, establishing a world-record auction price for any colored gemstone. Fetching $630,288 per [...]

A rare diamond dubbed the “Bulgari Laguna Blu” – a 11.16-carat pear-shaped gem certified as the highest grade blue diamond ever by the GIA – could sell for $25 million when at Sotheby’s Geneva [...]

A rare cabochon cat’s-eye emerald weighing 126 carats recently turned up for grading at the Gemological Institute of America (GIA) in Tokyo, one of the largest stones of its type the lab has ever [...]

The top item at the February 3 Important Jewels sale in Hong Kong was a bracelet with 13 graduated step-cut Colombian emeralds weighing a total of 19.41 carats. The piece, which also contained 13 [...]

The Diavik Midnight Sun, a yellow and pink diamond ring made up of stones from Rio Tinto’s diamond mines, has been unveiled in Sydney, Australia, recently.   The ring features yellow [...]

A 31.62-carat Fancy blue diamond pendant necklace is estimated to fetch between $10 million and $15 million at Christie’s Magnificent Jewels auction next month, IDEX Online reports.   The [...]

An amethyst and diamond pendant worn by Princess Diana to several events will lead the upcoming Royal and Noble sale at Sotheby’s, where it is expected to fetch up to GBP 120,000 ($145,670). [...]

Sotheby’s will offer a yellow diamond weighing more than 300 carats at its upcoming New York auction, where it is expected to bring in more than $15 million. The pear-shaped, 303.10-carat, [...]