Natural Aquamarine 4.20 ct – Cushion Cut, Untreated, ČGL Certified

This 4.20 carat natural aquamarine displays a delicate slightly bluish-green hue, cut into a refined cushion shape measuring 11.47 × 9.18 × 6.97 mm. With internally flawless (IF) clarity, the gemstone offers outstanding transparency and brilliance, a rare feature in aquamarines of this size. Untreated and entirely natural, it retains its purity and authenticity. Certified by the Czech Gemological Laboratory (ČGL), the gemstone comes with independent verification of origin and quality. Its flawle