This is a blue topaz sterling silver ring. The ring is simply marked 925 and appears to have a maker's mark but I cannot read it. The ring is a size 6-3/4. The blue topaz has been tested. The clear stones on either side of the topaz appear to be glass or cz's. The top of the ring measures just over 1/2 of an inch long. The ring is in very good condition but does have an age patina and may need cleaning or polishing. Please let me know if you have any questions. Thanks for stopping by.