https://gem-spectrum.com/2026/05/20/discover-the-world-of-gemstones-at-lecole-festival-in-shanghai/ 2026-05-20T05:58:30Z Gem Spectrum print & digital jewelry magazine en Discover the World of Gemstones at L’ÉCOLE Festival in Shanghai 2026-05-20T05:51:22Z Blog https://gem-spectrum.com/2026/05/19/the-world-diamond-heritage-board-opens-nominations-for-the-world-diamond-heritage-list-the-100-natural-diamonds-that-shaped-human-history/ 2026-05-19T08:00:15Z Gem Spectrum print & digital jewelry magazine en The World Diamond Heritage Board Opens Nominations for the World Diamond Heritage List — the 100 Natural Diamonds that Shaped Human History 2026-05-19T07:45:47Z Blog