DIAMOND IDENTIFIER
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United States of America Patent
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Issued Date -
Mar 4, 2010
app pub date -
May 8, 2009
filing date -
May 9, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Diamonds are embedded with one or more layers representative of an identifier. The identifier may include encoding in the form of defects created in one or more layers in a recognizable pattern, such as a bar code, characters or symbols. In some embodiments, a single crystal CVD diamond is formed with layers of varying thickness to provide the encoding. A system includes a radiation source to provide short wavelength light. A holder positions a gemstone to receive the light. A detector is positioned to receive fluorescent light from the gemstone when the gemstone is a CVD grown gemstone, and a pattern identifier correlates a detected pattern of defects to unique identification information.
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