Nice bracelet.  I found no excessive wear.  In fact many of the used ones I've seen hace much more wear at the clasp.  It's an M for medium.  I'm not sure what the stones are.  Possibly white/clear sapphire as was common.  The clasp can be a little fussy if you don't know how to press the little trigger tabs right, but it it works fine, and it's common.  Weight is approximate within reason.  Total length is at least 7.5".  See pics.