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 "Oro Classic" collection, these chic 30mm beaded hoop earrings shine in high-polished 18kt yellow gold. The perfect sophisticated classic. Length is 1 1/4". Snap-bar, Roberto Coin 18kt yellow gold beaded hoop earrings.