Lab-Grown Diamonds: The Basics

Lab-Created 1.57 Carat Princess Diamond F Color VS1 Clarity Ideal Cut James Allen
Can you tell that this 1.57-carat Princess cut diamond was grown in a lab? Lab-grown diamonds have the same appearance and quality as natural diamonds, at a much lower price point. From James Allen.

Lab-grown (or synthetic) diamonds are created in a lab, as opposed to natural diamonds, which are mined. Lab-grown diamonds are real diamonds, unlike diamond simulants like cubic zirconia or moissanite. They have the same chemical composition and structure as natural diamonds and are beautiful gem-quality stones. 

There are two major methods to create lab-grown diamonds: high pressure/high temperature (HPHT) and chemical vapor deposition (CVD). With both methods, diamonds grow over a period of several days to weeks. This is practically instantaneous compared to the millions of years it takes for natural diamonds to form. 

Lab-grown diamonds are a great alternative to natural diamonds. Since they are made in a lab instead of being mined from the earth, they are guaranteed to be conflict-free and more environmentally friendly. However, lab-grown diamonds aren’t the only conflict-free choice. Most diamonds on the market today were mined according to the Kimberley Process, which aims to prevent conflict diamonds from entering the