Natural bluish green tourmaline ring. An oval shape, 1.09 carat weight, 8.4x5.6mm, unheated & untreated tourmaline. Most tourmalines are heated/ treated today & unheated/untreated ones are rarer & more valuable. Ring size 7. A sterling silver ring setting made in USA. A beautiful color gem solitaire ring jewelry gift for her. Natural Untreated Bluish Green Tourmaline Ring Size 7 Sterling Silver Oval Teal Color 1.09 Carat Gem Solitaire Jewelry Gift