I bought a "red sapphire" from a jeweler a few years back. He said it was very rare, and the reason it's not a ruby is because it doesn't contain chromium. Well, of course, the naive, un-gemstone-educated me wanted it. I paid $200 for the stone. I can't whip it out right now but I think it's about 4mm, about .75 carat. Years later I was curious. How could a sapphire be red? Then I found out about beryllium heating. I remember him saying something about heat. Did he swindle me? Or was the price fair? I have his number. I'm not very confrontational though. What would you do?