JewelStop 925 Sterling Silver Sand Dollar Seashore Created Opal Charm Pendant Necklace - 18" JewelStop beautiful pendant featuring created opal. This pendant has been crafted in sterling silver stamped and marked. We provide a warranty of 1 year and 30 days money back guarantee. Elegant created opal pendant that come in an exquisite design you would love to flaunt. The dimensions of the product are 24 mm x 24mm. All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.