Help identifying antique west German piece

[Chris77]

Hi,
Looking for any info on a pice I just got at an estate sale. "Made in west Germany" on the chain and on the pendant the 500 marking and then the mark from the photo. Looking for any information on age or designer.
Thank you

 

[stracci2000]

The mark "500" means 12k gold.
West Germany existed between 1949 and 1990. Looks like a small diamond in there as well.
I'd say the style looks early, around 1949 or early '50s. Pretty!

PS, maybe the chain is not original to the piece, because the chain should also have a gold mark on the clasp.

 

[VRBeauty]

Try giving your pendant a bath. You can use hot water with just a drop or two of dish detergent, together with a very soft toothbrush to get at the back of the diamond. I think you'll be pleasantly surprised!