Founded in Vicenza, the City of Gold in 1977, Roberto Coin jewelry celebrates the elegance of femininity, creativity and craftsmanship. Thes… Founded in Vicenza, the City of Gold in 1977, Roberto Coin jewelry celebrates the elegance of femininity, creativity and craftsmanship. These high-polished 18kt white gold hoop earrings are sleek and fashion-forward. Length is 1 3/8". Made in Italy. Snap-bar, Roberto Coin 18kt white gold hoop earrings.