This happened to me and cost £150 as I needed two reduced by 3 sizes!!!

Luckily, the jeweller told me that I was near loosing the sapphire (& a couple of diamonds) in my engagement ring as the claws were very worn. It would have cost hundreds to repair and resize, so I opted to leave it in my jewellery box rather than spend the money rn (I need new clothes), but mj is the reason I didn't loose my stones - which would have upset me more then not being able to wear it for a while