Abalone/Paua Shell 925 Sterling Silver Triquetra Celtic Knot Solitaire Ring 14X7 mm. Natural Multicolor Abalone Marquise Shape 1 Piece The pattern of the stone may vary slightly from the picture shown. 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!