Hiya, nice to meet you all! Looking for some advice on this ring that was given to me by my mother. She got it from an antiques dealer many years ago. It’s just been stored away in a jewellery box for years since and she never wore it, she has now gave it to me. I’m trying to find out more about it, like how old it is and what the carat weight would be. Here are the details I know so far. It has a very high unusual setting.
7mm across and 4mm depth diamond.
18k white gold and has 2 hallmarks on outer band.
any advice info is muchly appreciated x