Gold is always worth something...or if you were very fond of your aunt,maybe you could have something done with it.Is it wide,if so,you could have some small stones set in it.
I sold a ring and got £82 for it. It will be worth something, if only for scrap. They do not sell it again, no-one wants old fashioned rings. You might get more if you sell privately.
I once went to one of these shops that buy gold...I had quite a few pieces I no longer wore and had my eye on a rather expensive necklace I had fallen in love with...I was AMAZED at the amount I got!!!!!
The shop I went to were very fussy. They wanted proof of identity etc. and then they made absolutely sure that I really wanted to sell the ring. As it only cost me £20 originally (I bought it from someone who had finished with someone else) I thought £82 was a fair price.
This entirely depends on what kind of gold the ring is made from "Yellow gold" is meaningless. Is it 14 carat, 18 carat or what ? Don't forget that if its 9 carat, then only one third is actually gold, the rest being copper, zinc, etc.
My wedding ring was hubby's grandmother's and was a 22 or 24carat gold cannot remember which. I also took a lot of old jewellery to a We buy Gold shop here and got over 500€ so was well pleased.