IGI Certified Natural Tanzanite – 4.62 Carats Presented is a beautiful Natural Tanzanite weighing 4.62 carats, expertly fashioned into a classic Cushion Cut. Measuring 9.77 × 9.77 × 6.31 mm, this exceptional gemstone displays a captivating violetish-blue to deep blue colour with excellent transparency, brilliance, and remarkable pleochroism. Accompanied by an International Gemological Institute (IGI) certificate, this tanzanite has been professionally identified and authenticated, providing buyers with confidence in its natural origin and quality. Found exclusively in the foothills of Mount Kilimanjaro, Tanzania, Tanzanite is one of the world's rarest gemstones. Its impressive size, elegant cushion cut, and vibrant colour make it an outstanding centre stone for bespoke jewellery or an investment-quality gemstone collection. Gemstone Details Gemstone: Natural Tanzanite Species: Natural Zoisite Variety: Tanzanite Origin: Tanzania Weight: 4.62 Carats Shape/Cut: Cushion Mixed Cut Measurements: 9.77 × 9.77 × 6.31 mm Colour: Violetish Blue / Deep Blue Transparency: Transparent Certification: International Gemological Institute (IGI) Highlights Natural Tanzanite 4.62 Carats Elegant Cushion Cut IGI Certified Origin: Tanzania Rich Violetish-Blue Colour Excellent Transparency & Brilliance Exceptional Pleochroism Ideal for Luxury Bespoke Jewellery Collector-Quality Gemstone Exact Gemstone Shown in the Photographs Secure Worldwide Shipping