'Sparkle' Sterling Silver Ethiopian Opal, Cubic Zirconia Ring, Size 6.75 Ethiopian Opal, Cubic Zirconia; Length: 0.6" .925 Sterling Silver; Weight: 2.6 grams Genuine Stone. Each item comes shipped in jewelry box. You are looking at a one of a kind piece, the pictured jewelry will be the same exact piece you'll receive. Each item is designed and handcrafted by our artisans.