Founded in Vicenza, the City of Gold in 1977, Roberto Coin jewelry celebrates the elegance of femininity, creativity and craftsmanship. An e… Founded in Vicenza, the City of Gold in 1977, Roberto Coin jewelry celebrates the elegance of femininity, creativity and craftsmanship. An enduring symbol of joy and happiness, this hummingbird is elegant and free. Artfully rendered here in brightly polished 18kt white gold and lit with round brilliant-cut diamonds. Suspends from a cable chain with a 2" extender. Made in Italy. Lobster clasp, Roberto Coin diamond hummingbird necklace.