Tahitian pearl popcorn necklace, David Yurman ($9,000) 

This Tahitian pearl popcorn necklace is a true rarity: Each one (only four exist, available by special order) truly is one of a kind, featuring naturally shaped pearls. “Starlight beads,” composed of black rhodium and pavé diamonds, sparkle along the strand of pearls, ranging in color from soft grays to peacock to aborigine. Says restaurateur Marion Scotto of Southampton, “I would give them as gifts to the most beautiful women I know: my daughters.” Americana Manhasset, 2060 Northern Blvd., 516-627-1700