Ethiopian Opal Ring 16x12mm Size 9 .925 Silver

Welcome to InnerVision Crystals Jewelry Line. New Jewelry for 2025! Shop our extensive collection of natural gemstone & crystal Jewelry - Something for every style. All Stones are Natural from the Earth, no dyes or lab / synthetics.  .925 Sterling Silver We recommend a polishing cloth to keep it looking new The measurements we use on our jewelry are as follows : Earrings - Size of the Stone in mm Most Pendants - Stone + Setting combined total mm & weight in grams Bracelets - Size of Stone in mm & Length in inches Rings - Size of the Stone in mm & U.S. Ring Size Help with Measurements : 1" = 25mm = 2.5cm 1 lb / pound = 453 g 1/2" = 12.5mm 1 g / gram = 5 carats 1/4" = 6.35mm 1 ct / carat = 0.20 g Most stones are measured in Grams or Carats & mm (Millimeters). Please use these references to better help you understand size, etc. Thank you for choosing IVC.