Lab Diamonds

About Lab Grown Diamonds

Lab grown diamonds are chemically, physically and visually the same as mined diamonds. They are not to be confused with diamond alternatives such as cubic zirconia or moissanite. As the name suggests, lab grown diamonds are grown in lab using one of two methods: high pressure, high temperature or chemical vapor deposition. Since they are grown in a lab, lab grown diamonds are much more affordable than natural mined diamonds. This allows people to save money or opt for a larger, higher quality diamond. Just like natural diamonds, lab grown diamonds come in many different shapes and sizes and are graded using the same 4C’s.

How Are Lab Grown Diamonds Made

HPHT (High Pressure, High Temperature)

This methods seeks to mimic the process that natural diamonds undergo by using high pressure and high temperature to grow a diamond.

A diamond seed is placed in a chamber. and the growth chamber is heated to 1300 - 1600 degrees C with pressures rising above 870,000 pounds per square inch.

Molten metal dissolves a high purity carbon source, carbon atoms from the carbon source precipitate and attach to the diamond seed and a synthetic diamond begins to grow.


CVD (Chemical Vapor Deposition)

This methods involves creating the diamond layer by layer, similar to a 3D printer.

Diamond seed crystal are placed in a diamond growth chamber and the chamber is filled with a carbon containing gas and heater to 900 - 1200 degree C.

A microwave beam causes carbon atoms to precipitate out of the gas and deposit onto the seed crystals.

Often times the crystals need cleaned from black graphite through the process which results in a layer-by-layer growth process

Socially Responsible And
Economical Lab Diamonds

While natural diamond mining conditions and practices have drastically improved over the last few decades, lab grown diamonds have no impact on the environment.

Thus lab grown diamonds can be perfect choice for those seeking to make an eco friendly purchase.

Yadav's Lab Grown Diamonds

We’ve taken decades of experience and non-compromising focus on quality for natural diamonds and carried that over to lab grown diamonds. We understand that quality does not end at the 4C’s and each diamond must inspect separate from its grading report. Each diamond that enters our showroom is indiscriminately inspected for any undesirable characteristics that can arise from the growth process and disregarded if our standards are not met.

Lab Grown Diamonds Frequent Questions

Lab grown diamonds are chemically, physically and visually the same as natural diamonds. Thus, it is not possible to tell the difference between lab grown diamonds and natural diamonds by visually comparing them.


Unlike diamond alternatives such as cubic zirconia or moissanite, lab grown diamonds are real diamonds. They share the same physical and chemical properties as natural diamonds.


Since lab grown diamonds are diamonds, they will last as long as natural diamonds. In other words, forever. Lab grown diamonds will not deteriorate over time, nor will they change colors or gain imperfections overtime.


Yes, a lab grown diamond will register as a diamond to a diamond tester.


Yes, GIA grades lab grown diamonds.


A moissanite is not a lab grown diamond. While moissanites are considered a diamond alternative they cannot be considered a diamond since their chemical and physical properties are very different. On the other hand, lab grown diamonds share the same chemical and physical properties as a diamond and therefore are a diamond.


The most common way to determine if a diamond is lab grown is by looking at its inscription. Any diamond that is accompanied by a grading report will have a number inscribed on its girdle. Lab grown diamonds will have additional text indicating that they are lab grown. The most common text is “LG” or “Lab Grown”. If a diamond is not yet graded, it must be examined by a grading institution such as GIA or IGI where it can be identified as lab grown or natural with the use of special tools. In some cases a diamond expert can identify if a diamond is lab grown or natural by examining the inclusions within the diamond. Heavily included natural diamonds will have inclusions that can only be created by nature.


Yes, lab grown diamonds can have inclusions. Lab grown diamonds acquire inclusions that result from the growing process.


As is, lab grown diamonds are not marked. However, after a lab grown diamond is certified, it is inscribed with an inscription that identifies it as a lab grown diamond.


Since lab grown diamonds are physically and visually the same as natural diamonds, a jeweler cannot tell the difference between the two.


Yes, a lab grown diamond can be insured just as a natural diamond can be insured.


Yes, lab grown diamonds last forever. Lab grown diamonds will not deteriorate overtime, nor will they change colors or gain imperfections overtime.


Lab grown diamonds have the same visual and physical properties as natural diamonds, thus they do not look different.


Lab grown diamonds are certified by both GIA and IGI.


In general lab grown diamonds will not become cloudy overtime. This is not to be confused with the cloudiness they can retain from lotions, soaps and sanitizers.


Lab grown diamonds are appraised by their 4C’s just as natural diamonds are. The higher a diamond is rated on color, cut, clarity and carat weight, the higher it’s appraised value will be.


In or visiting the San Francisco Area?
Come See Our Diamonds In Person

Creating the perfect custom engagement ring can be difficult. Come visit our showroom and get a free one-on-one personalized consultation.

Call us at +1-888-968-8810 to schedule an appointment.

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