Star Ring Ruby Square Band Engraved Sterling Silver Vintage Vintage Paris Jewelry Rings

This is such a rare ring.  Has a star design with red center stone.  Gem tester is testing this as Ruby (looks manmade based on appearance.  Star looks to be bronze rest is sterling.  Has engravings all the way around band.  Square shaped band but fits very comfortably.  Can’t size it on sizer but likely around an 8.5 based on how it fits me.  Stamped 925 for sterling.