Marcasite Crystal Buckle Ring Sterling Silver Sz 7

This is such a cool ring! I love the look of a buckle ring. This one has what I believe are marcasites. Unfortunately this one is missing a couple. There is one missing in the buckle part as well, and I think there was a clear crystal in that space. The rest of the buckle looks to be stones, but it is silver. The band area is where the marcasites are. I think I counted 3 missing and then a few that looked damaged/chipped. Please zoom in and examine all photos to see for yourself. This is a size 7 on my mandrel. Marked 925 DBT or DBJ ? This is a beautiful ring! It could use a cleaning, I am selling as found.