Hi Patricia, All family jewellery has a special place, so much so that sometimes I recommend to clients not to wear them everyday. My suggestion would be to convey to your fiance that you feel very privileged that he decided to give you his grandmother's ring. That you are very happy with the ring and what it means to him. However you may say to him that in terms of safety you dont feel like you should wear it everyday and suggest that it's important to you to design a set of rings together that signifies a new beginning for your lives together. Most couples these days decide to buy their rings together - after all you are the one that has to wear it everyday. I dont think it's a problem to suggest you choose something together. Passing jewellery windows you can stop and start to show him designs you like, this could break the ice a bit. I am sure he will understand - good luck Kind Regards Craig