“Fine jewelry doesn’t have to be all formal and fancy. Jennie Kwon’s ‘diamond’ ring features a beaded bezel to give you plenty of shine and sparkle, in such an easy-to-wear style that you’ll want to leave it on your finger all season long.” — Marcus Leung, buyer, No. 3

Available at No. 3, 1987 Hyde Street, at Union Street (415-525-4683 or shopno3.com), $317.