Black Opal 3.75ct Platinum Silver Ring

Black Opal 3.75ct,
October Birthstone,
Natural,
Oval Cabochon,Excellent Cut
Dimensions of Opal = 13.00 * 9.40 * 5.00mm,
Ring Size = 7.00,
Ring is has a Platinum Finish Solid 925 Sterling Silver,
Ring Weight = 2.90g.