This exquisite 6.76-carat natural rainbow moonstone presents a striking octagonal silhouette, expertly faceted to reveal the stone's mesmerizing play of light. Mined from Madagascar's prized gemstone regions, this untreated specimen displays the classic rainbow adularescence moonstone is celebrated for. With dimensions of 12.3 x 10.1 x 8.3 mm and subtle inclusions characteristic of natural stones, it combines refined elegance with authentic geological character. Perfect for the discerning collector or bespoke jewelry creation.