This 3 piece set is decorated with the goddess of lightening and The God of Thunder. All 3 pieces are stamped Siam Sterling. Only the earrings are stamped with a mermaid inside a seal and the letters F S C below. The pin measures approx. 2 1/2" by 1 1/4" the earrings measure approx. 1" by 3/4". Please feel free to contact me if you have any questions. Thank you for shopping.