I have a mans ring with a tiny sapphire (maybe 10-12points?). The sapphire is very dark and light doesn't pass though unless it's over an LED. Is there an "at-home" method I can use to lighten it? It's set into a 14k white gold emblem which is set over 14k yellow gold. Will leaving it on the window sill on sunny days help the process along?
Thanks
Thanks