1, hardness: the hardness of South African diamond is 10, and the hardness of Mosan diamond is 9.25.
2. Specific gravity: The specific gravity of South African diamonds is 3.52, while that of Mosan diamonds is only 3.22.
3. Refractive index: Mosan stone has birefringence, while South African diamond has single refraction.
4, fire color: Speaking of fire color, I have to praise Mosangshi. The fire color of Mosang is 2.4 times higher than that of South African diamonds. Compared with Mosan and South African diamonds under optical instruments, the rainbow light emitted by Mosan is very shocking.
5. Price: The price of American Mosan diamonds is one tenth of that of South African diamonds.
Mosan diamond was originally developed by American C3 Company with an investment of US$ 45 million, and was listed in1June, 1998. In 20 13, Mosan Diamond was introduced into the domestic market by Mosan Diamond Association, and its patent protection expired in 20 16. At present, Mosan diamond is produced all over the world. Only when it reaches DF color, excellent cutting and FL/IF clarity level can it be called better than American Mosan diamond. The chemical composition of Mosan diamond is SiC, almost colorless, with refractive index of 2.56-2.69, dispersion of 0. 104, birefringence of 0.043, hardness of 9.25 and density of 3.22g/cm3.