I would have to make too many assumptions about this ring, as to when it was made. I’m really not qualified, the style is kind of 80’s style but could be much older.

The brand mark on the inside looks maybe like a peacock stamp, or a shell?

Looks pretty on, great retro look. Has some wear that you would imagine on an older ring, but nothing that you can see unless you are looking with a magnifying glass

Gold plated sterling silver 295 could be cleaned up a little more on the inside.

Size 8.5