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 "Tiny Flower" collection, this delightful necklace features rich 18kt yellow gold blooms -- one dotted with .18 ct. t.w. round brilliant-cut diamonds. Rolo chain includes a 2" extender. Made in Italy. Lobster clasp, Roberto Coin diamond flower station necklace.