IGI Certified Natural Tanzanite – 6.37 Carats Offered is a magnificent Natural Tanzanite weighing 6.37 carats, beautifully fashioned into an elegant rectangular cushion cut. Measuring 13.17 × 8.84 × 6.76 mm, this gemstone displays a captivating blue-violet colour with exceptional brilliance and attractive proportions. Accompanied by an IGI Certificate, this Tanzanite provides professional gemological identification, offering buyers additional confidence in its authenticity and characteristics. The rectangular cushion cut enhances both brilliance and colour while giving the gemstone a sophisticated appearance. Its impressive size makes it an excellent centre stone for a luxury ring, pendant, or a premium gemstone collection. Gemstone Details Gemstone: Natural Tanzanite Species: Natural Zoisite Variety: Tanzanite Weight: 6.37 Carats Shape/Cut: Rectangular Cushion Mixed Cut Measurements: 13.17 × 8.84 × 6.76 mm Colour: Blue Violet Transparency: Transparent Certification: IGI Certified Number of Stones: 1 Highlights Natural Tanzanite 6.37 Carats Elegant Rectangular Cushion Cut IGI Certified Attractive Blue-Violet Colour Excellent Brilliance Ideal for High-End Jewellery Perfect for Collectors Exact Gemstone Shown in the Photographs Secure Worldwide Shipping