'Winter Nights' Sterling Silver Dendritic Opal Dangle Earrings Natural Dendritic Opal; Length: 1.75" .925 Sterling Silver; Weight: 7 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.