Each stone is inlaid by hand by craftsmen. It seems simple, but requires special care. Breaking through traditional design, it gives people an infinite and vast space imagination with its independent design style. It has a long heritage of craftsmanship. 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.