Sterling Silver Swiss Blue Topaz Cushion Ring, Size 7 Sterling silver ring with cushion-cut Swiss blue topaz stone Imported You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it! All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.