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 "Love in Verona" collection, these gorgeous 18kt yellow gold hoop earrings sparkle with dazzling diamond-studded flowers. Length is 1/2". Made in Italy. Hinged post, Roberto Coin diamond hoop earrings.