Its colour can also be designed freely based on customers' needs by Lab-grown diamond manufacturers.

The biggest advantage of Lab diamonds and Lab-grown diamonds is that they have good hardness and toughness. The hardness level of normal industrial diamonds and Lab grown diamonds can reach over HRD68 at present, about 5 times higher than that of CVD diamonds manufacturer. The highest hardness levels are over HRA72, equivalent to natural diamond. What’s more, their toughness can be 7 times higher than a common industrial diamond in some cases.