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What is the difference between artificial diamond and natural diamond

The difference between artificial diamonds and natural diamonds lies in different values, different colors and different refracted light. In appearance, there is little difference between artificial diamonds and natural diamonds, but artificial diamonds of the same quality level are much cheaper than natural diamonds, and some are even only one-fifth of the price of natural diamonds. The value of natural diamonds is relatively stable and sustainable. What is the difference between artificial diamond and natural diamond

Artificial diamond is a polycrystalline diamond made of diamond crystals with a diameter of 10 to 30 nm. Its appearance is no different from that of natural diamond.

Most artificial diamonds are yellow, thirsty yellow and have hourglass color bands, while natural diamonds are colorless, light yellow and other colors.

Under orthogonal polarization, natural diamonds show complex abnormal birefringence due to the complexity of growth and migration process, while synthetic diamonds show weak abnormal birefringence, and some synthetic diamonds show cross bright bands. (RenGongZuanDanHeTianRanZuanDanYouShenMeBuTong)