Stunning Sterling Silver Brecciated Australian Mookaite Ring, Size 12.75 Natural Australian Mookaite; Length: 1.3" .925 Sterling Silver; Weight: 7.1 grams Genuine Stone. Each item comes shipped in a 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.