Cross necklace about 30 inc. long.

A beautiful cross necklace 30Inc. Long I believe.It’s made out of platinum I think. Not 100 0/0 sure. Had it for 3 years and has not ever tarnished. You can wear it with a fancy dress or a casual look. I wore it just a few times it’s just not my thing. I thought I lost it I just found it so I thought I’d sell it.