Founded in Vicenza, the City of Gold in 1977, Roberto Coin jewelry celebrates the elegance of femininity, creativity and craftsmanship. From… Founded in Vicenza, the City of Gold in 1977, Roberto Coin jewelry celebrates the elegance of femininity, creativity and craftsmanship. From the "Venetian Princess" collection, these beautiful earrings feature dazzling diamonds that elevate the feminine floral design. Crafted in brushed and polished 18kt yellow gold. Made in Italy. Post/clutch, Roberto Coin diamond earrings.