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  2. Bort - Wikipedia

    en.wikipedia.org/wiki/Bort

    Bort, boart, or boort is an umbrella term used in the diamond industry to refer to shards of non-gem-grade/quality diamonds.In the manufacturing and heavy industries, "bort" is used to describe dark, imperfectly formed or crystallized diamonds of varying levels of opacity.

  3. Diamond color - Wikipedia

    en.wikipedia.org/wiki/Diamond_color

    Color grading of diamonds was performed as a step of sorting rough diamonds for sale by the London Diamond Syndicate. As the diamond trade developed, early diamond grades were introduced. Without any co-operative development, these early grading systems lacked standard nomenclature and consistency. Some early grading scales were; I, II, III; A, AA, AAA; A, B, C. Numerous terms

  4. Exploration diamond drilling - Wikipedia

    en.wikipedia.org/wiki/Exploration_diamond_drilling

    The key technology of the diamond drill is the actual diamond bit itself. [4] It is composed of industrial diamonds set into a soft metallic matrix. As shown in the figure, the diamonds are scattered throughout the matrix, and the action relies on the matrix to slowly wear during the drilling process, so as to expose more diamonds.

  5. Diamond (gemstone) - Wikipedia

    en.wikipedia.org/wiki/Diamond_(gemstone)

    A chemically pure and structurally perfect diamond is perfectly transparent with no hue, or color. However, in reality most gem-sized natural diamonds are imperfect. The color of a diamond may be affected by chemical impurities and/or structural defects in the crystal lattice. Depending on the hue and intensity of a diamond's coloration, a ...

  6. Diamond tool - Wikipedia

    en.wikipedia.org/wiki/Diamond_tool

    Construction: Medium or small sized diamond saw blades, diamond core drill bits and some diamond grinding or polishing tools are often used in repairing roads, remodeling buildings, and processing building materials. Woodworking: Composite laminate flooring is widely used. It is wearable as stone.

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