The Albion® Collection's unique cushion-cut center stone was David Yurman's innovative solution to use an oversize gemstone in a refined modern setting with classical proportions. Sterling Silver. Faceted Black Onyx, 7x7mm. Pavé Diamonds, 0.17 total carat weight. Ring, 4-11mm. Split-shank. Size 7. Style Number: R07443DSSABODI7.