Lab-grown diamonds have value, but their resale value is lower than that of natural diamonds.
Lab-grown diamonds are chemically identical to natural diamonds, and they have the same physical properties. However, lab-grown diamonds are not as rare as natural diamonds, so they do not have the same value. The resale value of a lab-grown diamond is typically around 30-50% of its original purchase price.
Lab-grown diamonds: Diamonds created in a laboratory using high pressure and heat. CVD diamonds: A type of lab-grown diamond created using chemical vapour deposition.
Lab-grown diamonds are diamonds that are created in a laboratory, rather than mined from the earth. Natural diamonds are diamonds that are formed naturally, over billions of years, under high pressure and heat deep within the earth.
Lab-grown diamonds are diamonds that are created in a laboratory, rather than mined from the earth. Cubic zirconia is a synthetic gemstone that is made to look like a diamond.
Lab-grown diamonds are diamonds that are created in a laboratory, rather than mined from the earth. Natural diamonds are diamonds that are formed deep within the earth over millions of years.
A diamond quality chart for laboratory-grown diamonds typically follows the same criteria as those used for natural diamonds, encompassing the four Cs: Cut, Colour, Clarity, and Carat weight. Here’s a detailed breakdown:
| Feature | Lab-Grown Diamonds | Natural Diamonds |
| Price | More affordable | More expensive |
| Rarity | Less rare | More rare |
| Ethicality | Ethically sourced and conflict-free | May have ethical or environmental concerns |
| Environmental Impact | No environmental impact from mining | Can have environmental impact from mining |
| Value Retention | May not retain value as well as natural diamonds | Can appreciate in value over time |
| Beauty | Identical | Identical |
Laser inscription:
Most lab-grown diamonds have a laser inscription on the girdle, which is the widest part of the diamond. The inscription will include the initials of the lab that created the diamond, as well as a unique identification number.
High-pressure, high-temperature (HPHT)
In the HPHT process, a small diamond seed is placed in a chamber with a carbon source, such as graphite. The chamber is then heated to extremely high temperatures (up to 2,000 degrees Fahrenheit) and pressures (up to 150,000 pounds per square inch). The carbon source is then converted into diamond, which forms around the diamond seed.
