(IDEX Online) - A unique watch created for The Godfather director Francis Ford Coppola fetched $10.8m, smashing its pre-auction estimate of $1m. The sale set a new world auction record for watchmaker ...

(IDEX Online) - The Gemological Institute of America (GIA) is expanding its origin-determination services to include opal, peridot, and demantoid garnet from January. The origin of these gemstones can ...

(IDEX Online) - A 13.54-carat Pariba tourmaline necklace set a world record at Christie's New York, selling for $4.2m. It was a highlight of the Magnificent Jewels auction yesterday (10 December) that ...

Is Costco brave or foolish going head-to-head with Trump over tariffs? The stakes are high for the warehouse giant, listed as the sixth biggest watch and jewelry retailer in the US (as ranked by ...

(IDEX Online) - Sotheby's marked the opening of its new global headquarters in New York by holding its first evening jewelry auction in a decade, achieving total sales of $43.9m. The sale, on 8 ...