ROBERTO COIN MARTELLATO 18K YELLOW GOLD DROP HAMMERED TEXTURE HOOP EARRINGS. Authentic Roberto Coin “MARTELLATO” collection 18K yellow gold hammered texture hoop drop earrings. Each earring measures approximately 1.44 inch drop x 1.35 inch in diameter and 0.14 inch (3.55mm) thick. They weight approximately 10.02 grams combined. Both earrings are properly hallmarked as “18KT” “Italy”…