This beautiful heavy bezel set natural black opal and wire necklace is perfect for anyone looking to make a statement. The 18k yellow gold wire necklace was handmade for this solid natural black opal. The opal is apx. 15 carat. The pendant and wire necklace weighs apx. 27.5 grams. The solid natural black opal measures apx. 14.58mm x 25mm at widest point and including the bezel it measures apt. 32.85mm x 17.85mm. The outer diameter of the wire necklace measures apx. 15 inches and is apx. 2 mm thick.