This JTV ring has a substantial blue Larimar cabochon and it's set in 925 Sterling Silver with anti-tarnish Rhodium overlay. The natural stone is a very nice blue with the white swirling patterns typical of Larimar. The design is no longer available at JTV and this ring is a size 5. I already have a similar ring, so this one isn't showing any wear, as seen in the pics. Comes with the blue JTV box.