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 Treasures" collection, this ultra-chic bumblebee pendant necklace dazzles with .13 ct. t.w. round brilliant-cut diamonds in polished 18kt white and yellow gold. Cable chain includes a 2" extender. Made in Italy. Lobster clasp, Roberto Coin diamond bumblebee pendant necklace.