This beautiful 11.94 Ct Australian gem crystal opal, carved into a nautilus shell, is a truly exceptional addition to any collection, mined by Sue Cooper herself. Its rarity, coupled with the amazing shell carving, captivates connoisseurs with its vibrant play of ocean colours, including sea greens and turquoise blues. Mined at Sue’s Russells opal mine in western Queensland, Australia, in 2021, this opal gem is a remarkable find. What distinguishes it is its origin: formed within a void, likely