Scientifically speaking gemstone hardness measures the ability to resist scratching nothing more. However its only one of several factors to consider.
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However its also brittle.
Used jewellery equipment. Istanbul jewelry show which started on thursday october 10th 2019 at cnr expo istanbul fair center will end on the evening of sunday october 13th 2019. Diamond is the hardest natural material in the world. Organized by informa markets and recognized as the 5th biggest international jewelry exhibition in the world istanbul jewelry show will brought together the professionals of the jewelry industry for the 49th time.
A gems overall wearability grade takes its hardness into account.