I bought this ring from an antique shop about 10 years ago. They told me that the ring has rubies and a center diamond and is set in rose gold. I’m not sure what the silver tone metal is. I am pretty sure that the ring is around a size 5, but I don’t have an official ring sizer. The antiques dealer told me that this ring was from the 1930s, but I have never had it appraised or verified. It’s so dainty and unique. Open to offers.