Metal: Alchemia Lead Free, Nickel Free, Hypoallergenic. Baked lacquer finish to protect metal from turning or tarnishing Turtle: 16mm x 15mm. Length of Earring including Hook: 1.50". Due to the one-of-a-kind nature of the stone, the color and shape pattern may vary slightly from the image shown. Mother of Pearl is uniquely sculptured and hand-carved. Handcrafted and artisan made All pieces are stamped or hallmarked for authenticity