Bulgari is making it easy for clients to create their own colorful cocktail rings with its new B. Cocktail Ring program (800.285.4274). The rings themselves, however, are far from basic. Each extravagant piece of jewelry features a 15-carat center stone nearly the size of a grape. The client’s choice of audacious stone—options range from bright-green peridot and deep-purple amethyst to mouthwatering pink tourmaline—pairs with a ring in white, yellow, or rose gold, with turquoise, mother-of-pearl, or pink opals. Mixing the various components yields 100 different designs for expressing a customer’s individual penchant for color. Bulgari’s Italian workshop makes each ring to order and serves it up within 75 days. The only hard part for the client will be deciding which stone to pick.