Not sure will look when get home It might not be stamped. The lady I bought from on here told me it was Avon. I sold alot of Avon and it does look like one of there pieces. Some of there items are stamped but not all. It might be I am at work. Right now I will check it for you when I get home Thanks for asking.
Yes it is stamped. Took my magnifying glass and found. I will add another photo and try to show it not sure it's so small but don't mind trying. Thanks
I added 6 an 7 . 6 blurred in 7 if you enlarge and look on small part of band straight back f green stone you can tell writing in photo but does day Avon. That's the best photo I could get hope that helps. Thanks