https://businessofjewellery.net/trade-talks/natural-diamond-council-successfully-challenges-misleading-ads-by-synthetic-diamond-retailers https://media.assettype.com/businessofjewellery/2026-05-15/cq4wdnmd/WhatsApp-Image-2026-05-15-at-2.01.16-PM.jpeg businessofjewellery en 2026-05-15T10:00:09.651Z Natural Diamond Council successfully challenges misleading ads by synthetic diamond retailers Trade Talks, NDC, Diamond retailers, synthetic diamond https://businessofjewellery.net/auctions/astaguru-showcases-regal-jewellery-and-luxury-timepieces-in-upcoming-heirloom-auction https://media.assettype.com/businessofjewellery/2026-05-15/fg4zt69o/WhatsApp-Image-2026-05-15-at-3.23.38-PM.jpeg businessofjewellery en 2026-05-15T09:55:43.387Z AstaGuru showcases regal jewellery and luxury timepieces in upcoming heirloom auction Auctions, AstaGuru, Luxury Timepieces, Heirloom Auction https://businessofjewellery.net/auctions/christies-geneva-magnificent-jewels-sale-totals-us665-million-led-by-ocean-dream-diamond https://media.assettype.com/businessofjewellery/2026-05-14/livz9w26/733a11e172ef510f0d5f0e0c1ba8bb65-l.jpg.webp https://media.assettype.com/businessofjewellery/2026-05-14/rcshxvvm/5db7ad7b37e843f446c685eca928219a-l.webp Max Fawcett, Global Head of Jewellery, selling The Ocean Dream at Christie's Magnificent Jewels sale in Geneva https://media.assettype.com/businessofjewellery/2026-05-14/hlterhl5/56da45253d2ab720bab38f745c721d40-l.jpg.webp Exceptional two-row natural pearl and diamond necklace by Boucheron achieved CHF 4,147,000 https://media.assettype.com/businessofjewellery/2026-05-14/donfc3dq/19a22cbf58b2c0af979277407074b033-l.jpg.webp Cartier sautoir worn in the 1974 film The Great Gatsby sold for CHF 444,500 (US$ 568,960) https://media.assettype.com/businessofjewellery/2026-05-14/vu2lfkao/93475a1eacefff681aa7fcd9a7b2cff4-l.jpg.webp A Cartier Flamingo Brooch achieved CHF 317,500 (US$ 406,400) https://media.assettype.com/businessofjewellery/2026-05-14/tfwepblm/11a96bff0ebbbd90ca66b590b99b74db-l.jpg.webp Cartier Art Deco multi-gem Tutti Frutti clip-brooch sold for CHF 1,054,100 (US$ 1,349,248). https://media.assettype.com/businessofjewellery/2026-05-14/miz7ii2k/7764e10c4991ab37acfc04354a16ee45-l.jpg.webp 22.28-carat Royal Blue Kashmir sapphire ring by Chaumet achieved CHF 2,744,000 (US$ 3,512,320) businessofjewellery en 2026-05-14T05:48:16.632Z Christie’s Geneva Magnificent Jewels Sale Totals US$66.5 Million, Led by Ocean Dream Diamond christie's geneva, magnificent jewels, ocean dream diamond, jewellery auction, cartier, chaumet, kashmir blue sapphire https://businessofjewellery.net/luxury/oscar-heyman-launches-immersive-new-website https://media.assettype.com/businessofjewellery/2026-05-14/a8mxmd0d/OH.com-Homepage.png https://media.assettype.com/businessofjewellery/2026-05-14/69lcvjqr/303392-artistic-shot.jpg PLATINUM "MUZO GREEN" COLOMBIAN EMERALD & DIA RING https://media.assettype.com/businessofjewellery/2026-05-14/1ym0pjbp/303816-model-shot.jpg https://media.assettype.com/businessofjewellery/2026-05-14/pjvrnioq/OH.com-Rings-Landing-Page.png https://media.assettype.com/businessofjewellery/2026-05-14/wwzwyx7r/804765-product-shot.jpg PLATINUM NH PADPARADSCHA & PINK SAPPHIRE BRACELET businessofjewellery en 2026-05-14T05:23:57.881Z Oscar Heyman Launches Immersive New Website oscar heyman, oscar heyman website, jewellery. luxury https://businessofjewellery.net/global-pulse/wdc-president-ronnie-vanderlinden-calls-for-unity-in-the-natural-diamond-trade https://media.assettype.com/businessofjewellery/2026-05-14/52rqa5wk/RVL-KPI-opening-CC.png businessofjewellery en 2026-05-14T05:07:07.339Z WDC President Ronnie VanderLinden Calls for Unity in the Natural Diamond Trade world diamond council, ronnie vanderlinden natural diamonds https://businessofjewellery.net/trade-show-reports/gemgenèves-10th-edition-breaks-attendance-records-and-reinforces-market-confidence https://media.assettype.com/businessofjewellery/2026-05-14/4yj3nd5r/GG26MAYOpening-CeremonyAndras-Barta-20.jpg https://media.assettype.com/businessofjewellery/2026-05-14/548l7l4p/GG26MAYAtmosphereAndras-Barta-17.jpg https://media.assettype.com/businessofjewellery/2026-05-14/s422egnf/GG26MAYFaçonner-la-matière-sublimerAndras-Barta-11.jpg https://media.assettype.com/businessofjewellery/2026-05-14/r9txvb29/GG26MAYMike-JosephAndras-Barta-5.jpg https://media.assettype.com/businessofjewellery/2026-05-14/9mlw6e11/GG26MAYMike-JosephAndras-Barta-13.jpg https://media.assettype.com/businessofjewellery/2026-05-14/l3jxs0v1/GG26MAYPress-ConferenceAndras-Barta-21.jpg businessofjewellery en 2026-05-14T04:44:59.632Z GemGenève’s 10th Edition Breaks Attendance Records and Reinforces Market Confidence gemgeneve, palexpo geneva, geneva jewellery show, 10th edition gemgeneve https://businessofjewellery.net/trade-talks/kp-delegates-tour-bharat-diamond-bourse https://media.assettype.com/businessofjewellery/2026-05-14/cj5s1psc/Group-Photo.jpeg businessofjewellery en 2026-05-14T03:58:53.729Z KP Delegates Tour Bharat Diamond Bourse Trade Talks