The value of lab-grown diamonds is determined by a number of factors, including the size, colour, clarity, and cut of the diamond. However, lab-grown diamonds are typically much less expensive than mined diamonds.
As a general rule of thumb, lab-grown diamonds are typically 20-30% less expensive than mined diamonds of the same size, colour, clarity, and cut. However, the price of lab-grown diamonds can vary depending on the supplier and the specific diamond.
It is important to note that the resale value of lab-grown diamonds is currently lower than the resale value of mined diamonds. This is because lab-grown diamonds are a relatively new product and there is not yet a strong secondary market for them. However, as the lab-grown diamond market grows, it is likely that the resale value of lab-grown diamonds will increase.