Fyrffytr1 and BigCypressHunter (and CC Hunter, whose reply arrived while I was typing this post) are correct... it is the finger-ring from the base of the handheld version of a candlestick-holder. (The handheld version was constructed so you could walk around the house -- or to the little house out back -- without spilling hot wax on your fingers, as you definitely would when using a tabletop-type candleholder for such trips. I figured you'd like to see the full form of the object your find was a part of, so here's a photo for you.