Why Lab Grown?

What Are Lab Diamonds?

Lab-created diamonds are diamonds in every way. They have the same brilliance, sparkle and luster as earth-mined diamonds. Their physical properties are identical to that of traditional earth-mined diamonds. That’s because they have the same chemical structure as earth-mined diamonds. The difference between the two is the difference between fruits grown outdoors and in a greenhouse. In a word, origin. Earth mined diamonds are formed deep within the earth’s mantle, as volcanic eruptions cool. Diamonds are created when high pressures and temperatures transform carbon in the earth’s mantle into its gemstone form, which is then mined using heavy machinery. Just as in the case of a greenhouse, the final product is identical, maybe only missing the pesticides.

Lab-grown diamonds start out as carbon, often in the form of a hydrocarbon gas such as methane. The carbon is then heated and pressurized to recreate the same situations that grow diamonds in the earth’s crust. To finally give the diamonds its sparkle and shine, it is cut and polished. 

How are lab-Created diamonds grown?

Lab diamonds can be grown in various methods. The 2 most common are CVD and HPHT.

CVD- Chemical Vapor Deposition:

A small diamond seed is placed in a chamber filled with a hydrocarbon gas, typically methane. The gas is heated to 1,400 degrees Fahrenheit, and powerful microwaves are used to break the bonds in the methane. The free carbon begins to stick to the diamond seed, slowly growing the diamond crystal structure.

HPHT- High pressure high temperature.

A small diamond seed is placed in a bed of carbon material like graphite. The carbon is then compressed to over 1 million pounds per square inch, or 70,000 times the atmospheric pressure at sea level. This pressurized environment is then heated to 2,700 degrees Fahrenheit. This extreme environment melts the carbon around the diamond seed which is then cooled to crystallize into a new lab-grown diamond.


HPHT lab-creating diamond machines

Why Choose Lab-Grown

Lab grown diamonds are better for the environment than earth mined diamonds. Diamonds grown in a lab require significantly less water, generate less carbon emissions, and do not disturb the plant and animal life nearly as much as a mined diamond. The Diamond mining industry has also been involved in conflicts, and while initiatives are in place to mitigate that man-made diamonds bypass conflict altogether.

Are Lab Diamonds fake?

Lab grown diamonds are not imitation diamonds, lookalikes, or diamond simulants. Diamond simulants are minerals with a look similar to those of a diamond, but in reality are entirely different minerals. These include cubic zirconias, moissanite, yttrium aluminum garnet, and even glass. These simulants are made from entirely different elements, and thus do not share the same physical or optical properties of diamonds. At Stefeno Navi, we do not sell any diamond simulants.

Lab made diamonds are identical to earth mined diamonds. They share all of the same physical characteristics and are both chemically identical. The difference between the two is simply in their origin. Mining diamonds is a resource-intensive process, requiring large amounts of water and fossil fuels, disturbs native wildlife, and generates large amounts of mineral and chemical waste. Lab-grown diamonds in contrast, require only a fraction of the resources to produce, making them far more sustainable and environmentally friendly.