10K White Gold Round Diamond Anniversary Ring (1/2cttw. J/K I2) Makes For A Great Gift Classic Diamond Band Crafted In Solid 10 Karat White Gold All purchases from SuperJeweler come with The SuperJeweler Lifetime Guarantee. Your SuperJeweler jewelry purchase includes a lifetime guarantee against the loss of side stones or damage to the jewelry's setting or center stone. It also includes a one-year replacement guarantee against the loss of your jewelry's center stone.