Inspired by the planets, this coral and onyx ring celebrates the 1970's conquest of space. 18k yellow gold Mediterranean coral Black Onyx Vintage (2 weeks) Style #010103 Size & Fit Vintage ring crafted in 18k yellow gold with two 1/2 spheres in red coral and two in black onyx. The ring is stamped 750. The size is currently 6 3/4 and we offer complimentary resizing. Size Chart Product Care Visit Product Care page