Sterling Silver Heart Genuine Quartz White Mother of Pearl Doublet Pendant Necklace, 18" This doublet stone is composed of a clear quartz facetted top and mother-of-pearl bottom; the filter adhesive that holds the two together provides the beautiful baby blue-topaz color. 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!