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To: John Finley who wrote (41)	4/17/2003 10:15:56 PM
From: kinkblot	Read Replies (1) of 75

It mattered to these guys: Gem Industry Is Shaken by Reports of Treated Stones online.wsj.com WSJ 04-17-03, p B1 Gem wholesalers lost $30 million on fake padparadschas [rare orange-pink sapphires]. Heat-treatment is used to modify sapphires and rubies -- beryllium is diffused into the surface, achieving rare colors. Not exactly high tech. On careful analysis, the artificial gems are distinguishable by color penetration that is too uniform and doesn't reach the core. "All the color traits that buyers are led to believe occur in nature are being produced in ovens. All of the romance is taken out of the stone." Gotta have that; that's what the customers pay for. <g>

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