Turkish sultans were smitten with peridot and amassed the largest collection in the Ottoman Empire. By all accounts, the dandy King Edward VII declared the lively stone to be his favorite. And no wonder, its vibrancy and brilliance are enthralling. The 2.87-carat stone that crowns this Lang Collection vintage-inspired ring is radiant with an irrepressible bright apple-green hue, and, needing little else in the way of embellishment, it rests in an elegant setting supported by a sleek ribbed shank. Time to join the esteemed rank of distinguished peridot lovers. Crafted in 18K yellow gold, it is currently ring size 6 1/4.