Vintage Turquoise Green Stone Brass Copper Brass Silver Ring

This ring was purchased overseas a long time ago.
It has a turquoise-like green stone, but I don't know the exact type.
There's a crest or engraving of some kind on the side.
It's a uniquely reconstructed ring, and I'm not sure what it's made of, as the materials include copper, brass, and a dull silver-like color all mixed together.
It's a very voluminous and impactful vintage piece, so if you like the look of it at first glance, I highly recommend it. I've often been approached about it at vintage clothing stores.
It's about 3.7 centimeters long. It's about size 17, but the size can be adjusted.

Anything not mentioned in the description is basically unknown.
I'm sorry, but I'm not able to provide photos of it being worn due to various circumstances.
I also receive requests for additional photos, but it takes a lot of time and often isn't possible, so I'm selling it at a lower price than I originally acquired it for. I'd like to sell it to those who can make a decision based on the current information.
I occasionally review the price, so please like it and check back.
If you purchase multiple items, I can offer a slight discount, so feel free to ask.

Color...Green系 (Green-based)
Size...FREE