Samuel B. Sterling Silver and 18K Yellow Gold Twisted Glow Cable Bangle with 7mm round checkerboard cut Black Spinel and Balinese Detail. Our Sterling Silver 18k solid Gold 7mm round black spinel twisted cable bangle in 3mm, handcrafted in Bali by our skilled artisans. From our signature collection, Royal Bali™ featuring designs handcrafted using sterling silver, solid 18k gold accents and genuine gemstones.