Home Gems & Minerals Colored Gems from Gemworld International: Tanzanite Gems & MineralsColored GemsEducation from Gemworld International: Tanzanite December 14, 2022 500 FacebookWhatsAppLinkedin 2022GemFocus-DecTanzaniteDownload This feature is provided courtesy of Gemworld International, Inc., publishers of the GemGuide and Gem Market News. MUST READAll AllAntique & Estate GemsAntique & Estate ShowsAuctionsCelebrities Wearing GemsColored GemsDIamondsEducationFancy Color DiamondsFeatured NewsGem & Jewelry ConferencesGem & Jewelry ShowsGem LabsGems & MineralsGemstone EnhancementLists of Gem MaterialsMineralsMiningMuseum CollectionsOn a personal noteOriginal Content for the Roskin ReportPearlsPhotographySchoolsTrade NewsTrade ShowsTradeshow CalendarTrends Rio Tinto discovers exceptional yellow diamond from its Diavik Diamond Mine News - April 10, 2025 Rio Tinto has unearthed one of the largest gem-quality yellow diamonds ever discovered in Canada, from its Diavik Diamond Mine. The 158.20 carat rough diamond... FACETS Sri Lanka & the Sustainability Pavilion December 16, 2023 Australian Opal Awards 2024! November 25, 2023 You Need a Ruby Chandelier, Yes? January 13, 2023 POPULAR CATEGORYTrade News897Featured News830Colored Gems312Education311Trends269DIamonds228Gems & Minerals204