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, 14x14mm Shown with: Box Chain not included Pavé Diamonds, 0.32 total carat weight Pendant, 18x18mm The clasp at the top open up, so you can clip it onto most any size chain you like ! Very cool design. About the Jewlery Line: David Yurman is America's foremost luxury jewelry brand. Topping lists of the most famous jewelry names in the world with the likes of Tiffany's and Cartier, David Yurman is a luxury jewelry and timepiece brand founded in New York City by two local lovers.