by ChaiK » Mar 15, 2019 at 10:39 AM Just a question. Are all pink tourmalines and rubellites irradiated? Or just some? I have recently tended towards the pink. Here are a few pictures. These are rubellites. This one is a pink tourmaline. Pink tourmalines and rubellites can be irradiated and GIA cannot detect treatment. GIA will simply put on their certificate Scan QR Code for further information. What a pity. This irradiating thing that is going on for gemstones does give certain lovely ones a bad name. I can only assume these ones above have been irradiated. I wonder, though, if colour is stable? And really, are all of them irradiated? Your thoughts and opinions would be appreciated. Thank you .