Dot-Com Mis-Com

Not everything you read on the Internet is true, and even some information that's meant to be true may unintentionally mislead. Consider Martin Haske, an appraiser and gemologist in Brookline, Mass., visited the site after a client challenged him to check out its information page "to see what 'true' prices are and what a real dealer sells." Haske found the selling prices. He also found confusing and incorrect enhancement information. According to, "The heat treatment of tanzanite is not used to create color. All tanzanite are heated on a natural fire upon cutting the stones. This heat helps to bring out the color that already exists in the stones." That's not correct. Tanzanite's blue-violet color-even that of the few naturally occurring tanzanites-comes about only by heat-treating brown zoisite. "Their information page provides a classic example of con

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