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Stuller Has Just Screened Its 1,000,000th Diamond!

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See how this affects your business and what you can do to screen diamonds at your store

Earlier this year, Stuller opened its doors to an on-site, independently-operated GIA Melee Analysis Service. Since April, GIA has screened round, D-to-Z color melee from 0.9mm to 4.0mm parcels coming through the building— scanning 1,800 to 2,000 stones per hour! Well, guess what?


We’ve Just Screened our MILLIONTH Diamond!

That’s right, more than 1,000,000 diamonds have passed through the GIA Melee Analysis Service at Stuller’s global headquarters in Lafayette, LA.

GIA Melee Analysis Service Diamonds

Why does this matter?

We brought the GIA Melee Analysis Service to Stuller headquarters to make certain that every diamond we sell is correctly represented. By partnering with GIA, we’re ensuring the most precise screening processes in the industry. After all, with over 60 years of synthetic diamond research, GIA is the foremost authority on diamond screening and authenticity.

Our industry-leading efforts promise to leave no stone unturned. With lab-grown diamonds moving into the marketplace, it’s more important now than ever to preserve the integrity of our inventory. With help from the GIA Melee Analysis Service, we confidently stand behind every stone we sell. And in turn, you can pass that confidence and trust on to your customers.

What can you do?

Begin by fully understanding the differences between natural and lab-grown diamonds. First off, lab-grown diamonds are not simulants— they have the same chemical composition and crystal structure as naturally mined diamonds. Secondly, there are two processes used to create lab-grown diamonds, High-Pressure High-Temperature (HPHT) method, and Chemical Vapor Deposition (CVD) method.

As a jewelry professional, it is important to make sure that you are able to give your customers peace of mind. In order to do that, it’s important that you equip yourself with the right tools. To get started, here are a few suggested questions to ask yourself to help you decide the instrument that is best for you:

1. Will you be screening loose diamonds, mounted jewelry, or both?

2. What size diamonds will you be screening?

3. Are you screening center stones or melee? What shapes will you be screening?

4. Do you want the instrument to be manual or automated?

GIA Melee Analysis Service Diamond Testers

Remember, no single instrument can do it all

Once you’ve answered these questions, it’s time to start your research. Here’s a link to Stuller’s website that features different types of screening equipment for both diamonds and gemstones. Remember, no one instrument screens for everything, which is why it’s very important to read the details for each piece of equipment before purchasing. And if you think these instruments are expensive, consider the cost of unintentionally selling a lab-grown diamond as a natural diamond and ask yourself this question: What is my reputation worth?

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Here is a handy comparison of natural vs. lab-grown diamonds—

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Heather Fontenot

Senior Director, Diamonds & Gemstones

Heather joined the Stuller loose stone merchandising team in August 2015 after attaining her bachelor's degree in Business Management from the University of Louisiana at Lafayette. Her natural curiosity and love of all things that sparkle and shine has pushed her to learn as much as she can about Earth's most precious possessions.