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gem-quality diamond

См. также в других словарях:

  • Diamond (gemstone) — Part of a series on Diamonds Material Material properties Crystallographic defects Formatio …   Wikipedia

  • Diamond cut — This article is about diamond cut styles. For a broader discussion of decorative diamonds, see Diamond (gemstone). Part of a series on Diamonds Material …   Wikipedia

  • Diamond knife — File:DiamondKnife.jpg Finished diamond knife in wooden case A diamond knife is a very sharp knife whose blade is made from diamond. The cost is very high; diamond knives are used for scientific applications where an extremely sharp and long… …   Wikipedia

  • Diamond enhancement — Diamond enhancements are specific treatments, performed on natural diamonds (usually those already cut and polished into gems), which are designed to improve the gemological characteristics and therefore the value of the stone in one or more ways …   Wikipedia

  • Diamond — This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, including the shape ◊, see Diamond (disambiguation) …   Wikipedia

  • Diamond clarity — Part of a series on Diamonds Material Material properties Crystallographic defects Formatio …   Wikipedia

  • Diamond simulant — Due to its low cost and close visual likeness to diamond, cubic zirconia has remained the most gemologically and economically important diamond simulant since 1976. The high price of gem grade diamonds, as well as significant ethical concerns of… …   Wikipedia

  • diamond — diamondlike, adj. /duy meuhnd, duy euh /, n. 1. a pure or nearly pure, extremely hard form of carbon, naturally crystallized in the isometric system. 2. a piece of this stone. 3. a transparent, flawless or almost flawless piece of this stone, esp …   Universalium

  • Diamond — /duy meuhnd, duy euh /, n. 1. Neil, born 1941, U.S. singer and songwriter. 2. Cape, a hill in Canada, in S Quebec, on the St. Lawrence River. * * * I Mineral composed of pure carbon, the hardest naturally occurring substance known and a valuable… …   Universalium

  • Diamond cutting — Part of a series on Diamonds Material Material properties Crystallographic defects Formatio …   Wikipedia

  • Diamond anvil cell — Schematics of the core of a diamond anvil cell. The diamond size is a few millimeters at most A diamond anvil cell (DAC) is a device used in scientific experiments. It allows compressing a small (sub millimeter sized) piece of material to extreme …   Wikipedia

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