This is a pendant top made of either cloisonné or ceramic. (I'm not sure, and I apologize that I can't tell for sure.) There are no markings on the metal part of the edge, so it's likely gold-plated. Size: Approximately 3.5 x 2.8 cm (excluding the clasp) Despite its size, it has a strong presence when worn. * The T-shirt and pearl chain in the last photo are not included in the product.