The listing, Elegant Square Cut CZ Solitaire Pendant On Chain has ended.
This really is quite pretty. This isn't a tiny pendant, it's not huge, but not one of those itty bitty ones, either. I'm not certain of the measurement. There are no markings and it was left to me with tons of new jewelry from my grandmother, so I don't know what the metal content is. I'm assuming it's either silver plated or dipped. The pendant itself seems to have gold plating inside of the setting, on the inner pats. I think it's to improve the sparkle.