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  2. Material properties of diamond - Wikipedia

    en.wikipedia.org/wiki/Material_properties_of_diamond

    Material properties of diamond. Burns above 700 °C in air. Diamond is the allotrope of carbon in which the carbon atoms are arranged in the specific type of cubic lattice called diamond cubic. It is a crystal that is transparent to opaque and which is generally isotropic (no or very weak birefringence ).

  3. Synthetic diamond - Wikipedia

    en.wikipedia.org/wiki/Synthetic_diamond

    Synthetic diamond. Lab-grown diamonds of various colors grown by the high-pressure-and-temperature technique. Laboratory-grown ( LGD ), also called lab-grown diamond, [ 1] laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond, is diamond that is produced in a controlled technological process (in contrast to ...

  4. Superhard material - Wikipedia

    en.wikipedia.org/wiki/Superhard_material

    Diamond is the hardest known material to date, with a Vickers hardness in the range of 70–150 GPa. Diamond demonstrates both high thermal conductivity and electrically insulating properties, and much attention has been put into finding practical applications of this material. However, diamond has several limitations for mass industrial ...

  5. Diamond simulant - Wikipedia

    en.wikipedia.org/wiki/Diamond_simulant

    The most common diamond simulants are high- leaded glass (i.e., rhinestones) and cubic zirconia (CZ), both artificial materials. A number of other artificial materials, such as strontium titanate and synthetic rutile have been developed since the mid-1950s, but these are no longer in common use.

  6. Fancy Color Research Foundation - Wikipedia

    en.wikipedia.org/wiki/Fancy_Color_Research...

    Fancy Color Research Foundation (FCRF) is a non-profit organization that promotes the transparency and fair trade for the fancy colored diamonds industry. The foundation was officially inaugurated in November 2014. [1] [2] The FCRF conducts research on all aspects of fancy color diamonds and publishes quarterly updates of the Fancy Color ...

  7. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    Prices of hydrogen produced by distributed steam methane reforming, as predicted by H2A Production Model from United States Department of Energy, [9] assuming price of natural gas of US$3/MMBtu (US$10/MWh; US$0.10/m 3). Does not include cost of storage and distribution. 1: 2 H (D) Deuterium: 0.0001667 [10] 13 400: 2.23: 2020: CIL [11]

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    You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

  9. Rapaport Diamond Report - Wikipedia

    en.wikipedia.org/wiki/Rapaport_Diamond_Report

    The report is updated every week on Thursday, at 11:59pm EST. The Rapaport Price List is copyrighted and available only to subscribers. Jewelers and diamond merchants use it to set prices for consumers. Consumers should therefore use the report with caution. [2] These prices are used as the basis for standardization and negotiation of diamond ...

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