Rough Uncut Diamonds go by several names: synthetic, synthetic, cultivated, and so on.

Artificial diamond and synthetic diamond these two names are easy to misunderstand, mistaken for fake diamond, imitation diamond.

Lab-grown diamonds are much more vivid, using CVD technology to slowly grow tiny diamond seeds.

What is drill imitation?

As the name suggests, it is to use other materials to make the appearance of a diamond. Such as mosanite, zircon, corundum and even glass, plastic, etc., are considered to be imitation diamonds. It just looks like a diamond, but it's not the same thing.

The hardness of imitation drill is low, after wearing for a period of time, the surface and corners will slowly wear, that is, it does not look so bright, white, fog.

Imitation diamond refractive index, dispersion and other values are not the same as diamond, specific performance is the degree of shining, fire color and other differences. Experienced people can spot a fake with their bare eyes.

What is a lab-grown diamond?

The cultivation of diamonds mimics the formation conditions of natural diamonds by artificially creating a high temperature and pressure environment in which carbon slowly accumulates on the diamond seeds, making the diamonds grow larger. About a week can grow into 1 carat size blank, after cutting and grinding, is the size of 30 minutes bare drill. China now produces 90 percent of the world's synthetic diamonds, including a 15-carat synthetic diamond on display at Wanhe Diamond in 2017.
What's the difference between cultured and natural diamonds?

Diamond is a crystal made of carbon, whether natural diamond or cultivated diamond, their composition is the same, completely made of carbon.

The hardness is 10, the refractive index is 2.42, and the dispersion is 0.044.

A cultivated diamond is a real diamond. There is no difference.

American scholars have made such a metaphor, the cultivation of diamonds and natural diamonds is like ice in the refrigerator and ice in the lake, exactly the same, if anything, that is, the cultivation of diamonds is more pure and beautiful.