Had a great hour at a local site and ended up with 5 rings, including one 18K with a small diamond. But another ring has got me puzzled. Seems like silver with a maker’s stamp inside and a symbol on the otside that I don’t recognise. Can anyone tell me what it is or how I might find out? Thanks.
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Thanks - it's my first five ring day
It looks like I've solved the mystery - it's likely the Eastern symbol "OM" for peace (or a stylised version of it).