Wonderful sparkle and contrasting shapes distinguish this Art Deco necklace in sterling. The glass crystal stones, clear and bright and full of dazzle, alternate between smaller squares and larger rounds. The stones are set in etched sterling silver frames, a nice reminder of the age and quality of this piece. The square stones are 7mm (5/16") and the rounds are 10mm (7/16"). It measures 15" and is marked Sterling on the clasp. The frames test as sterling also. You can add length with an extender if needed. The condition is very good to excellent with age-commensurate flea bites and one tiny chip.