synthetic gem


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synthetic gem

[sin′thed·ik ′jem]
(materials)
A precious or semiprecious stone made by artificial processes, for example, synthetic diamonds made by extreme heat and pressure on carbon, used industrially; and synthetic rubies made by high-temperature crystallization of aluminum oxide, used in laser equipment.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
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Knowing what not to buy--keeping up on the latest treatments and enhancements--is a key part of building the gem collection, although the ROM does purposely pick up examples of enhanced and synthetic gems for its teaching collection, most recently glass-filled rubies, which regularly turn up on the market.
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Survival of the retail fittest
"Some synthetic gems can fool even the most practiced eye.
Gem cutter

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