I can't believe the oval setting is not original one, it looks totally perfect on its own. The design is so classic and looks stunning on her finger. Very thoughtful of you to keep her grandma setting, it will mean a lot of love for her. Congrats. And can't wait to see your pick of wedding ring to go with it.
Oh it's absolutely gorgeous!!! Love the sentiment of using the family setting and then gifting the center as a pendant for your MIL! It looks huge on her and so beautiful. You and IDJ did a great job!!!