925 gemstone size 7 1/4 vintage bracelet jewelry

Braceket is in good condition and kept I a clean smoke free home. Very pretty sparkling piece. The gemstones registered in the diamond /moissanite category. So by looking at this piece my guess is marcasite. I am not a gemologist but the testing device does register it in the diamond category I cleaned the piece and it could use additional more thorough cleaning. Size 7 1/4 marked A 925 which I am not sure which brand signs A. 925 for sterling silver. I added a last photo which looks like a P inside the clasp but I am certain if it just looks like a P or truly is and/or what that may mean. There are 16 diamond or square shaped pieces size 16mm square X 4mm. Each piece is separated by 16 smaller 3mm round marcasite linking pieces. The clasp slides into the other side and clicks secure. There is an additional side lock which it clicks the opening over the small round piece and locks into place. #vintage #marcasite-jewelry #bracelets #sterling-silver-jewelry