Certified Natural Aquamarine – 21.31 Carat (ALGT Report) This impressive natural Aquamarine exhibits a beautiful light blue color and remarkable transparency. Expertly shaped in a rectangular cushion, mixed cut, it displays fine brilliance and elegant proportions—ideal for a statement jewelry piece or serious gemstone collection. Certified by ALGT (Antwerp Laboratory for Gemstone Testing), confirming its authenticity and natural origin. Details: Species: Natural Beryl Variety: Aquamarine Weight: 21.31 Carat Shape & Cut: Rectangular Cushion, Mixed Cut Measurements: 20.75 × 14.60 × 11.47 mm Color: Light Blue Transparency: Transparent Certification: ALGT, Belgium Note: Aquamarine is commonly heated to enhance color; there is no scientific method to determine whether this gemstone has been treated or not. A large and rare Aquamarine with fine light blue tone—perfect for collectors, investors, or high-end jewelry creations. This item will be shipped within 3 days through a secure and insured shipping company, after confirmation of payment by Catawiki.