14 Karat Yellow Gold White Opal Ring Barrel Shape 4mm14 Karat Yellow Gold White Opal Ring Barrel Shape 4mm Item Number: GKR6017 All Weights and Measurement are approximately and may vary slightly from listed information as below: Band Width: 4mm Weight: 1. 3 1. 6 gram depending on the size Material: 14K Yellow Gold, White Opal Feature: Waterproof This Luxury Yellow Gold ring is made from White Opal inlaid in Solid 14K Yellow Gold. The opal comes with a layer of resin which makes the ring waterproof.