Samuel B. Sterling Silver 18k solid Gold dot design band with pave black spinel center, handcrafted in Bali by skilled artisans. From our signature collection, Royal Bali™ featuring designs handcrafted using sterling silver, solid 18k gold accents and genuine gemstones. Black Spinel. Ring dimensions: 3/16" North South. 10 meals donated to Feeding America for each Samuel B. item purchased.