Nano-Polycrystalline Diamond
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Physical & Optical Properties
Mohs Hardness
Value & Market
Where to Buy Nano-Polycrystalline Diamond
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About Nano-Polycrystalline Diamond
Nano-polycrystalline diamond is a synthetic ultra-hard material consisting of aggregated micro- to nanoscale diamond grains sintered under ultra-high pressure, producing a material harder than single-crystal diamond with exceptional toughness and no cleavage planes. Developed by Japanese researchers in the early 2000s, it is used primarily in industrial cutting and polishing tools and precision optics. As a gem material it is occasionally shaped into small faceted stones by researchers, representing the ultimate in hardness among gem materials.