Gaspare and Odal, indeed with some ingredients you can make all colors of the rainbow.
A problem in general is that if you mention everything you see why a ring is good or bad (Imo), you help the collectors and the fakers. Still....the one who love rings, the collectors! , will take more time and have more love and feeling for it , will see the difference. If not.... the price will help you to watch out.
Here a ring from a private dealer, who mentions that it is a repro.
