Our stones are created as a result of fair laboratory practices in environmentally responsible conditions. The stones in jewelry are 100% hand-crafted, it is cut and polished by our experienced craftsmen. The ring surface is smooth and comfortable for daily wear,will not scratch or hurt your finger. 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 hollow design allows the light to be fully refracted, highlighting the brilliance of the stone.