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Photonics Weeds out the Impostor Jewels

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Jennifer L. Morey

How many times have you opened the mailbox to read, "Congratulations! If you have the winning number, you will receive a valuable diamond pendant"? Your excitement builds when you see that your number matches the winning number, only to be let down when you read in the fine print that the "valuable" pendant is worth only $3.97. Common sense tells us that a free gemstone is not all it's cracked up to be. But when you're slapping down several thousand dollars at the jewelry store, how can you be sure you're getting the real thing and not just the latest laboratory creation? Jewelers commonly...Read full article

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    Published: June 1998
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