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, this elegant necklace presents a dreamy 7x7mm carved mother-of-pearl drop iced with .17 ct. t.w. round brilliant-cut diamonds -- which also spark the bail and a mini flower on one side of the rolo chain. Finely crafted in polished 18kt yellow gold. Includes a 2" extender. Made in Italy. Lobster clasp, Roberto Coin diamond and mother-of-pearl necklace.