So, my boyfriend proposed over the weekend and gave me a beautiful antique art deco style ring. While I do really love it, I would like to change the stone from a diamond to a larger light blue sapphire (I just don't really care for diamonds), and change the mount to a textured bezel instead of the tiny prongs. I've attached a photo of the ring before (left side) and photoshopped after (right ride - blue stone) of what I would like it to look like.
Does anyone know if this is even possible??? Thanks in advance!

Does anyone know if this is even possible??? Thanks in advance!
