Porcelain Dipped in 22k gold luster, 14k gold filled post and backing. Circle length: 11/32 inch (9mm) Inspired by organic shapes and natural textures. Porcelain is the finest clay that requires it be high-fired to maintain the purity and exceptional durability of the pieces. Each piece is hand sculpted and assembled by Mier in her studio in New York City. All jewelry are made to order.