DTC performs sophisticated sorting of tough diamonds into categories, and then sells bulk lots of rough diamonds to a limited number of sightholders a few occasions a year. Diamond is the hardest natural materials identified to man – its hardness set to 10 on Mohs scale of mineral hardness and having an absolute hardness worth of between ninety, 167, and 231 gigapascals in various exams. Diamond’s hardness has been recognized since antiquity, and is the supply of its name. However, aggregated diamond nanorods, an allotrope of carbon synthesized by compressing fullerene, are even tougher than diamond. Diamond crystals are fashioned deep inside the Earth, under circumstances of high strain and excessive temperature.

A diamond colour chart reveals you the development of shade as you progress additional down the diamond color scale. Here is a chart that helps you determine out which diamond shade is greatest when purchasing a diamond. With this out of the way, let’s look at the GIA’s diamond shade chart and the means it relates to buying a diamond.