by indigo » Jul 11, 2001 I recently inherited my grandmother's platinum engagement ring. She purchased it about 45 years ago from an estate so I don't know how old it is. She said that it was a miner's cut, and that the jeweler who checked it each year had wanted to buy it from her. That is all that I know about it. I would like to take it in to have the setting checked and have the diamond appraised. I am a little worried about this since I don't know a thing about the diamond and wouldn't know the difference if someone switched stones. Any advice?