http://www.idexonline.com/RSS/Gemstones.rss Gemstones en 2026 IDEX Online Mon, 22 Jun 2026 12:39:22 GMT 10 http://www.idexonline.com/portal_FullNews.asp?id=51269 http://www.idexonline.com/portal_FullNews.asp?id=51269 Emerald buyers are being warned about gems that have had their clarity enhanced AFTER they were laboratory tested. Swiss Gemmological Institute (SSEF) warned yesterday (15 June) that it had seen a growing number of cases in which... Tue, 16 Jun 2026 06:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=51269 http://www.idexonline.com/portal_FullNews.asp?id=51258 http://www.idexonline.com/portal_FullNews.asp?id=51258 A diamond necklace featuring a 5.02-carat Burmese ruby sold for $2,178,000 - more than 20 times its pre-sale low estimate at Bonhams New York yesterday (8 June). The auction house said there was "intense competition" for the piece, which had been ... Tue, 9 Jun 2026 08:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=51258 http://www.idexonline.com/portal_FullNews.asp?id=51253 http://www.idexonline.com/portal_FullNews.asp?id=51253 The Peacock of Ceylon, a 102.40-carat unmounted sapphire, sold for CHF 1.55 million, or about USD 1.98 million, at Sotheby's Geneva, affirming the strength of the market for unheated colored stones. The cushion-shaped gem was described by... Sun, 7 Jun 2026 04:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=51253 http://www.idexonline.com/portal_FullNews.asp?id=51244 http://www.idexonline.com/portal_FullNews.asp?id=51244 A 31.77‑carat Paraiba tourmaline will be offered for sale with an estimate of $550,000 to $650,000 at Phillips New York. It is one of the "newest" gemstones. Tourmaline was recognized as a distinct mineral species back in the mid-1700s but Paraiba tourmaline... Mon, 1 Jun 2026 04:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=51244 http://www.idexonline.com/portal_FullNews.asp?id=51240 http://www.idexonline.com/portal_FullNews.asp?id=51240 A green jadeite necklace sold for HKD 200.2 million ($25.6 million) at Christie's Hong Kong, narrowly missing a world record. The Ethereal Jadeite Necklace, featuring 61 jadeite cabochon beads, hit its high estimate (HKD 110 million to 200 million).  Thu, 28 May 2026 05:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=51240 http://www.idexonline.com/portal_FullNews.asp?id=51238 http://www.idexonline.com/portal_FullNews.asp?id=51238 Gemfields sold $26.8 million of rough emeralds at its May auctions amid cautious demand, and warned it expects to offer a smaller-than-usual selection for sale next month. The UK-based gemstone miner also said it would have to be flexible about... Wed, 27 May 2026 05:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=51238 http://www.idexonline.com/portal_FullNews.asp?id=51212 http://www.idexonline.com/portal_FullNews.asp?id=51212 A huge 11,000-carat rough  ruby has been recovered in Mogok, Myanmar, according to state media. It's roughly half the size of the 21,450-carat rough gem found in ruby-rich Mogok in 1996 - often described as the largest discovered in the country - but is said to... Thu, 14 May 2026 10:00:00 GMT http://www.idexonline.com/portal_FullNews.asp?id=51212 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