What's a synthetic diamond called?

Artificial diamonds, also known as mozambas, are the best substitutes for diamonds, with a hardness of 9.25, a refractive index of 2.65, and a specific gravity of 3.22. Because the refractive index is higher than natural diamonds, the fire color effect of mozambas has reached 2.5 times that of natural diamonds. Natural diamonds are single refractive, while mozambas have the characteristics of birefringence.

Raw diamonds are called mozambas.

Mozambican diamonds are synthetic diamonds and are known as the best substitutes for diamonds. The hardness of natural diamonds is 10, while that of Mozambican diamonds is 9.25. The refractive index of diamonds is 2.417, while that of Mozambican diamonds is 2.65. The specific gravity of diamonds is 3.52, while that of Mozambican diamonds is 3.22.

The Mozambican diamond itself is colorless, but because of its high refractive index, it can produce fire colors with different effects in different environments with the intensity of light. Fire colors are very rich, even in dim environments, they can appear yellow, and the fire color effect is more than 2.5 times that of natural diamonds.

The Mozambican diamond has the characteristic of birefringence. If you look closely under the sun, you can see the double shadow of the ridge line and the bottom tip of the Mozambican diamond. Natural diamonds are single refractive, so there will be no double shadow at the bottom, but they can refract sunlight.