Are Lab-Grown Diamonds GIA Certified?

For many couples today, lab grown diamonds offer an inspiring balance of beauty, quality, and value—without sacrificing the tradition of choosing a brilliant, lasting stone. That is why one question naturally follows: Are lab grown diamonds GIA certified?

At Simone & Son, where every diamond is evaluated by our in-house GIA-certified gemologists, we believe you deserve full clarity about what you’re buying and how it’s graded.

The GIA and Its Role

The Gemological Institute of America (GIA) is the world’s most respected authority on diamond grading. Known for its strict standards and transparent grading reports, the GIA sets the benchmark for diamond certification.

Traditionally, the GIA focused on natural-mined diamonds. However, as technology advanced, the institute adapted—recognizing the importance of offering trustworthy reports for lab grown stones as well.

Do Lab Grown Diamonds Get GIA Reports?

Yes—lab grown diamonds can be GIA certified. The GIA provides full grading reports that evaluate the same critical factors:

• Cut

• Color

• Clarity

• Carat Weight

• Growth Method (such as HPHT or CVD)

One key difference? A GIA lab grown report clearly discloses that the diamond was created in a lab, ensuring full transparency.

Why Certification Matters

When you buy a lab grown diamond, certification isn’t just a piece of paper—it’s your assurance of the diamond’s authenticity, quality, and origin.

A GIA certificate verifies:

• The stone is a true diamond, identical in chemical and physical structure to mined diamonds.

• The exact characteristics, so you know what you’re paying for.

• The growth method used, providing peace of mind that you’re getting what you expect.

How Reports Compare: Natural vs. Lab Grown Diamonds

Does Every Lab Diamond Come with a GIA Report?

Not always. Some jewelers use other reputable labs, like IGI (International Gemological Institute) or AGS (American Gem Society), which also offer detailed lab grown grading reports.

At Simone & Son, our GIA-certified gemologists guide you through the differences so you can choose the report that suits your needs best.

What Makes Lab Grown Diamonds Appealing?

When certified by the GIA or an equivalent lab, lab grown diamonds offer:

• Brilliance: They’re chemically identical to natural diamonds—same sparkle, same hardness.

• Value: Often, you’ll get a larger stone for the same budget.

• Transparency: Full details about how and where the diamond was created.

It’s the same love story, just grown with modern precision.

What to Ask When Shopping Lab Grown Diamonds

When you visit our Huntington Beach showroom, our gemologists will help you understand:

• Is the diamond certified?

• Which lab issued the report?

• Are the 4Cs clear and disclosed?

• Is there a laser inscription on the girdle?

These details matter—and so does who you buy from.

Why Choose Simone & Son for Lab Grown Diamonds?

• In-house GIA-certified gemologists

• Generations of trust and expertise

• Custom design and CAD services

• Detailed appraisals with every purchase

We’re proud to help you compare natural and lab grown diamonds side by side, so you feel confident in your choice.

Experience Transparency and Craftsmanship

At Simone & Son, every love story deserves a diamond that shines honestly—lab grown or natural. Visit our jewelry store in Huntington Beach to discover our certified loose diamonds, custom engagement rings, and family-focused service that makes choosing your forever ring an experience worth remembering.

Ready to choose your diamond with confidence?

Visit us: Simone & Son, Top Rated Jewelry Store in Huntington Beach, CA

Call us: (714) 546-1140

Email us: info@simoneandson.com

From our family to yours, thank you for letting us be part of your story.