Graceful Unisex Bezel Setting RingThis is a unisex design, simple but graceful, special bezel setting makes the stone firmer. The center stone is 0. 5 carat. UNA&CO unique technology to make it feel like 100% platinum. The materials used are 30% platinum & 70% silver, which are anti allergic, non tarnishable and antioxidant. The ring surface is smooth and comfortable for daily wear,will not scratch or hurt your finger.