Lindsay Lohan was no gem, says the jewelry maker mother of LiLo’s ex Samantha Ronson. “When I saw myself just how volatile Lindsay was, I realized that the relationship was not healthy,” the Daily Mail on Saturday quoted Ann Dexter-Jones as saying. Dexter-Jones was referring to a 2008 incident in Dubai, where she said Lohan threw an A-list temper tantrum while Ronson was DJing the opening party of the five-star hotel Atlantis.