I have never really seen a ring like this before. It is a beautiful old thick silver band which has a square crystal cube on it. Because of the cut of the crystal it changes colour in different light. I don't know what material the crystal is but it is nice and solid. It has a small chip in one corner of the crystal. the crystal is one cm cubed. Ring size approx. O but adjustable as the way the ring is made means the band can be slightly opened.
Comes with ring box