Color, light, and the science of diamond growth.

What Are Colored Lab-Grown Diamonds?

Laboratory-grown diamonds are diamonds created through controlled technological processes. They have essentially the same chemical composition, crystal structure, and optical and physical properties as natural diamonds, but a different origin.

How They Are Made

The two principal methods are high-pressure, high-temperature (HPHT) growth and chemical vapor deposition (CVD). Both produce diamond crystals that can be cut and polished for jewelry.

Where the Color Comes From

Color can arise during growth or through post-growth treatments. Trace elements and changes within the crystal influence the way a diamond absorbs light. Treatments may be used to create or modify a stone's hue. Ask about both growth method and color treatment when choosing a colored laboratory-grown diamond.

Diamonds, Colored Gemstones, and Simulants

A laboratory-grown diamond is not the same material as cubic zirconia or moissanite. Similarly, laboratory-created ruby, sapphire, and emerald are distinct gemstones, not colored diamonds. A stone's color alone cannot identify its material.

Choosing Your Piece

Consider the color you love, the cut, dimensions, setting, and suitability for everyday wear. Read the individual product specifications for the stone identity, origin, treatments, and any accompanying laboratory documentation. Do not assume that every colored stone in our jewelry is a laboratory-grown diamond or comes with a grading report.

Our Colored Gemstone Jewelry collection brings different stone materials together by style. This guide explains laboratory-grown diamonds specifically; it does not replace the material information for an individual product. Contact us if you would like clarification before ordering.

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Further reading: GIA: About Laboratory-Grown Diamonds; GIA: Treated-Color CVD Diamonds; GIA: Diamond Simulants and Laboratory-Grown Diamonds.