Tanzanite, a rare blue-violet gemstone found only in Tanzania's Merelani Hills, captivates with its natural beauty and uniqueness. Untreated Tanzanite, celebrated for its pure, unaltered state, is highly prized by collectors and jewelry enthusiasts. Renowned for its rarity and vibrant hues, this gemstone stands as a symbol of exclusivity and elegance, making it a coveted choice in the gemstone market. Tanzanite Crystal: 1 piece Total Weight: 57,5 ct / 11,5 gr Dimension: 29x20x12 mm. Gem Type: 100% Natural Tanzanite Shape: Irregular Color: As Picture Clarity: As Picture Origin: Tanzania, Merelani Hills Treatment none at all Hardness: 6.5-7.0 Refractive index: 1.69-1.70 Buyers will receive the exact Tanzanite crystal displayed in the photos. The images are taken under professional lighting to showcase the stone’s details, though slight color variations may occur due to individual screen settings and lighting conditions. Close-up shots highlight the crystal’s features for transparency and accuracy. Please note: Any suggested spiritual or health benefits of gemstones are not scientifically proven and should not replace professional medical advice. Catawiki disclaims liability for these claims. Tracked shipping ( 7-20 days for Europe ) ( 15-40 days for rest of the world )