The listing, Gold 10K Hallmarked Ring with Stone (uncertain of kind) has ended.
I know some stones, but I just don't have any idea what this is. When a light inside reflects off of it, it shows a star, but I don't think it's a sapphire, so I really don't know what it is. The first picture seems to have the better color of the stone. It has lots of inclusions on the back. It is marked with an E and a circle around it, then 10K. Sizing it up on a paper chart, it looks like a size 8, but keep in mind, that's from a paper chart. U.S. shipping only.