Sterling Silver Donut Curb Chain Pendant Necklace, 18" Sterling silver pendant featuring donut shaped lavender natural quartz. Sterling silver 18" Curb Chain. Spring Ring Clasp. Natural Quartz is commonly treated and impregnated with polymers to enhance its color and improve its stability. The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture. 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!