Lab-Grown Gems

Chatham is recognized as the world’s leader in premium quality laboratory-grown gemstones. 


Established in 1938, Chatham holds the distinction of being one of the earliest pioneers in the field of laboratory-grown gemstones. Carroll Chatham played a central role in developing methods of growing gemstones in a controlled environment, that are physically, chemically, and optically the same as their mined counterparts. 


Today, Chatham excels in creating a kaleidoscope of high-quality lab-grown gemstones that rival their mined counterparts in brilliance, color richness, and durability.





Chatham’s loose stone category is exclusively wholesale. We will gladly connect you with one of our Authorized Gemstone Retailers through our Concierge Service, or you can visit our Store Locator for a retailer near you. For a truly customized Chatham experience, book a virtual appointment with one of our expert team members, to ensure we meet your expectations.

Visit a Retailer

Book an Appointment

Book A Virtual Appointment


Chatham's Quality

  Chatham Lab-Grown Gemstones are renowned for their exceptional quality in cut, color, clarity and overall value. 


Sell a woman diamonds, she'll wear them with everything. Sell her color, and she'll create a wardrobe.

Color richness:

Chatham’s lab-grown gemstones are known for their bold and rich colors. Through a controlled growth process, Chatham grows gemstones in a wide spectrum of colors, from vivid and vibrant hues to delicate and subtle shades.


This assortment of options allows customers to find the colors they desire, making Chatham lab-grown gemstones a popular choice for those seeking specific shades.


Please note, while we strive to present our lab-grown gemstones as accurately as possible, we cannot guarantee that the color you see on your screen is an exact match. Individual screen calibrations can affect how colors appear. 

Pure clarity:

Chatham places a strong emphasis on producing gemstones with exceptional clarity. The controlled lab environment minimizes the presence of inclusions and imperfections, resulting in gemstones that are virtually free from the flaws often found in earth-mined gemstones.


This high clarity enhances the gemstone's visual appeal and brilliance. 

Precision cutting:

Gemstone cutting is a true art form. It takes incredible skill, patience, and a sharp eye. Chatham has a team of master cutters who have undergone a 12-month long training program to follow Chatham’s strict cutting standards.   Each lab-grown gem is carefully hand cut to maximize color and brilliance. Proportion, symmetry, and polish are all rigorously considered.

Brilliant value:

Chatham lab-grown gemstones come at a more affordable price point compared to their mined counterparts of similar quality. Customers can acquire gemstones that are virtually indistinguishable from earth-mined without the premium price tag, making them an attractive choice for both budget-conscious shoppers and those seeking value and quality. 


Chatham grows a kaleidoscope of gemstones. For a closer look, click each lab grown gem to learn more about it’s beauty, quality and color possibilities. 


Chatham is the exclusive distributor of Chatham lab-grown gemstones. If you are a retailer interested in creating an account, please click here to complete our form. Someone will be in touch shortly with your account details. 

Open an Account