Porcelain with 22k gold dipped, 14k gold filled post and backing Square: 1/4 x 1/4 inch (6mm x 6mm) Inspired by organic shape and natural texture. 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 handmade from date of order.