14k Gold Plated Sterling silver 10-13mm Rough Nugget Natural Gemstone Necklace Crystals. These beauties come on a card that tells you the energy of the stone. Each Birthstone is a genuine nugget of stone. Steel Chains dipped in precious metal. These are small enough to be worn all together in a family necklace. We have gold dipped and silver dipped. Lobster claw 18 Chain Waterproof Hypoallergenic.