http://www.idexonline.com/RSS/Gemstones.rss Gemstones en 2026 IDEX Online Fri, 17 Apr 2026 18:37:02 GMT 10 http://www.idexonline.com/portal_FullNews.asp?id=51126 http://www.idexonline.com/portal_FullNews.asp?id=51126 Gemfields reported a 32% drop in FY2025 revenue after a "difficult year," with disruptions to both its emerald and ruby mining operations. The UK-based miner said total annual revenue from continuing operations was down from $199.4 million... Thu, 26 Mar 2026 11:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=51126 http://www.idexonline.com/portal_FullNews.asp?id=51008 http://www.idexonline.com/portal_FullNews.asp?id=51008 A platinum Art Deco demi-parure that belonged to the late Queen Fabiola of Belgium is to be auctioned next month. The three-piece matching jewelry set comprises a diamond necklace of 38.62 carats, a 120-carat fancy briolette-cut aquamarine that can be ... Mon, 29 Dec 2025 10:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=51008 http://www.idexonline.com/portal_FullNews.asp?id=50972 http://www.idexonline.com/portal_FullNews.asp?id=50972 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 drastically affect their value. Black opal from Australia is more ... Sun, 14 Dec 2025 11:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=50972 http://www.idexonline.com/portal_FullNews.asp?id=50966 http://www.idexonline.com/portal_FullNews.asp?id=50966 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 raised a total of $46.5m. The Tiffany & Co. tourmaline and... Thu, 11 Dec 2025 10:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=50966 http://www.idexonline.com/portal_FullNews.asp?id=50939 http://www.idexonline.com/portal_FullNews.asp?id=50939 The Royal Blue, an iconic necklace of 16 Kashmir royal blue sapphires, weighing 104.61 carats, broke two world records when it sold for $16.2m at Christie's Hong Kong. It became the most expensive Kashmir sapphire necklace ever sold at auction, beating... Tue, 2 Dec 2025 02:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=50939 http://www.idexonline.com/portal_FullNews.asp?id=50920 http://www.idexonline.com/portal_FullNews.asp?id=50920 One of the world's biggest emerald rocks - weighing 300kg (661lbs) - has been discovered in Madagascar's presidential palace after the country's former leader Andry Rajoelina was overthrown in a coup last month. The massive gem has reportedly been hidden... Mon, 24 Nov 2025 21:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=50920 http://www.idexonline.com/portal_FullNews.asp?id=50819 http://www.idexonline.com/portal_FullNews.asp?id=50819 Sotheby's sales of fine jewelry and watches in Paris raised over $10.9m (EUR 9.3m) last week - the best results for the twin events since 2018. It was the fourth consecutive white glove sale - an auction in which no lot is left unsold - for fine watches, and nearly ... Sun, 12 Oct 2025 08:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=50819 http://www.idexonline.com/portal_FullNews.asp?id=50716 http://www.idexonline.com/portal_FullNews.asp?id=50716 Gemfields has recovered a huge 11,685-carat emerald - the biggest from its Kagem mine, Zambia, and possibly the biggest in the world. The gemstone, called Imboo (the 'buffalo' in the local Bemba and Lamba dialects), eclipses the 7,525-carat ... Thu, 28 Aug 2025 05:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=50716 http://www.idexonline.com/portal_FullNews.asp?id=50656 http://www.idexonline.com/portal_FullNews.asp?id=50656 Gemfields' revenue from ruby and emerald auctions halved in the first six months of 2025, down to $60m from $121m in the same period last year, as it faced operational disruptions, production shortfalls in high-quality stones, and challenging market... Mon, 4 Aug 2025 11:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=50656 http://www.idexonline.com/portal_FullNews.asp?id=50571 http://www.idexonline.com/portal_FullNews.asp?id=50571 Gemfields says it is close to completing a second processing plant at its Montepuez ruby mine, in Mozambique, that will treble its capacity. Work on the $70m project has been delayed because of technical issues, difficulties obtaining work permits... Wed, 2 Jul 2025 06:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=50571