A Key to Synthetic Diamond ID?

Most retail jewelers show little interest in synthetic near-colorless diamonds, since widespread commercial availability still looks to be a few years off. Nevertheless, one gemologist has been working to prevent the inevitable retail jeweler's nightmare: unwittingly buying and selling a synthetic diamond. "A definitive identification for synthetic near-colorless diamond may be at hand," says Martin Haske of Adamas Gemological Laboratory in Brookline, Mass. Haske is the developer of the SAS2000, a portable laptop-size spectrophotometer. Using newly developed instrumentation adapted for the SAS2000, Haske has uncovered a fairly reliable diagnostic characteristic spectrum for synthetic near-colorless diamond. This latest version of the desktop instrument includes UV/VIS spectroscopy as well as a $10,000 Raman/photoluminescence spectroscope add-on, a miniaturized version of the $250,000

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