I know Vicenzagold is built on resin, but I can't seem to find any references anywhere online that says EternaGold contains resin. As far as the rolling rings, there is a slight issue because they seem to be smaller than expected in some sizes, and even when I have to give them a push to get them over my finger joints, they haven't bent a bit. One of the things I hated about the new resin/gold jewelry is that you never feel sure what you've got, but my rolling rings seem fine. Hope you enjoy if you buy, juliet.