Tanzanite – 5.51 ct – Cushion Cabochon Species: Natural Zoisite Variety: Tanzanite Weight: 5.51 Carat Measurements: 12.07 × 8.30 × 5.46 mm Shape & Cut: Cushion, Cabochon Colour: Intense Blue (Purplish) Transparency: Transparent Origin: Tanzania (expert opinion by ALGT) Laboratory report: ALGT, Report no. 07368961, dated 09/09/2025 Treatment:    •   Tanzanite is commonly heated at low temperature to enhance colour (standard industry practice).    •   Moderate clarity enhancement in fissures. Enhancement is reversible and common in trade. Remarks: A beautiful 5.51 ct Tanzanite with intense blue-purple colour and good transparency. The cabochon cushion cut gives it a smooth and elegant appearance, highlighting the stone’s vivid play of colour. Certified by ALGT, Antwerp. Shipping: Will be shipped with ALGT certificate and sealed blister. Secure and insured shipping.