White gold, moonstone, turquoise & diamond T.A.C. earrings

18k white gold earrings with 7.79 carats of moonstone, 17.15 carats of (untreated) turquoise, and 0.24 carat of diamonds. The Amsterdam Collection. Signed with 3 St. Andrew's Crosses, the insignia of Amsterdam, and numbered: H02. The Netherlands, recent.