Auction

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, [...]

A richly colored diamond initially suspected to be treated soared past expectations at Heritage Auctions last week, fetching $1.8 million and setting a record for the Texas-based company. The [...]

Een reusachtige roze diamant, een zeer zeldzame edelsteen, zal op 8 november worden geveild in het Zwitserse Genève. De veiling zou tussen 25 (25,8 miljoen euro) en 35 miljoen dollar (36,1 [...]

Sotheby’s will offer a set of unmounted pear-shaped diamonds for up to HKD 55 million ($7 million) at its jewelry sale in Hong Kong next month. The 31.46- and 30-carat, D-flawless stones will be [...]

A yellow rough diamond weighing 151.60 carats will be the star item at Mountain Province’s sale in Antwerp later this month. The octahedron with “exceptional clarity” will be among more than 90 [...]

The De Beers Blue is probably one of a select group of rare diamonds originating in the deepest parts of the earth, according to researchers at the Gemological Institute of America (GIA). The [...]

A Kashmir sapphire led Wednesday’s Bonhams Hong Kong Jewels and Jadeite auction, selling for more than $400,000. The ring, featuring the unheated cushion-shaped, 6.99-carat sapphire with a [...]

A private collector in Asia paid $13 million for a pear-shaped stone at the most recent Sotheby’s New York sale, renaming it the Claire G diamond, after his wife. The 101.41-carat, D-color, [...]

A rare 5.09-carat, blue Paraiba tourmaline and diamond ring will be the star of the upcoming Hong Kong Jewels and Jadeite sale at Bonhams. The piece, which carries a high estimate of HKD 3.8 [...]

An emerald ring set with pink diamonds from Rio Tinto’s Argyle mine has raked in $1.1 million at auction. The piece, named Majestique, was part of a collaboration between Muzo and Argyle Pink [...]