Art Deco Round Silver Pendant with Rhinestones

Pretty Art Deco design in a big statement piece size approx 2 inch round. Not sure what type of metal, it doesn't tarnish like plain silver so it may be coated, I do not see any stamping on the item anywhere. Unique clasp system where it is magnetized so you can put any type of necklace chain or string or even make into a keychain or purse charm. Good condition, no major scuffs and all stones intact.