I received this ring from a friend of my mother's. The luster, neon glow, and color are all exceptional, and the triangular design is also very lovely. It seems that a shop on Mercari is also selling a similar ring with a different carat weight. That one was also beautiful. I am selling this because I have another Paraiba with a similar color. Metal: pt900 (stamped) Natural Paraiba Tourmaline: 0.14ct (stamped) Natural Diamond: 0.18ct (stamped) Size: Approximately size 12.