Gem Certification

Gem Certification

At Saatchi & Co, we are dedicated to offering only the highest quality natural gemstones and fine jewelry. To ensure complete transparency and trust, we partner with globally respected gemological institutions such as GIA (Gemological Institute of America) and GCAL (Gem Certification & Assurance Lab). Each certified stone is meticulously graded and verified for authenticity, allowing our clients to purchase with confidence and clarity.

GIA: Setting the Standard for Gemstone Excellence

Founded in 1931, the GIA has long stood as the gold standard in gemological research and diamond grading. With its mission rooted in integrity, GIA introduced the renowned Four Cs (Cut, Color, Clarity, Carat Weight), which have since become the global benchmark for diamond evaluation.

Every GIA-certified gem offered by Saatchi & Co is accompanied by a detailed report that includes the stone’s measurements, grading, and any treatment disclosures. Through decades of scientific expertise and educational leadership, GIA ensures every certified stone represents uncompromising quality.

GCAL: Precision, Assurance, and Integrity

GCAL is known for its commitment to precision and integrity in gem certification. As one of the few labs offering a guarantee on grading accuracy, GCAL’s standards align closely with Saatchi & Co’s promise to deliver exceptional quality to every client.

Through rigorous gem identification, advanced diamond grading technology, and deep research, GCAL ensures every gemstone meets strict evaluation criteria. For our customers, this means peace of mind—knowing your gem has been verified by one of the most trusted names in the industry.

In-House Grading for Smaller Stones

For gemstones under 0.50 carats (excluding antique cuts), Saatchi & Co employs a careful in-house grading process by our trained gem specialists. While these stones may not come with external lab certificates, our evaluations are conducted with the same commitment to transparency and quality.

Each stone is reviewed for authenticity, clarity, color, and structural integrity—ensuring it meets our standards before reaching you.

Our Promise

We believe that fine jewelry is as much about integrity as it is about beauty. Whether accompanied by a GIA or GCAL certificate or expertly graded in-house, every gemstone at Saatchi & Co is backed by our promise of authenticity, accuracy, and lasting value.

If you'd like to request certification for a specific piece or learn more about our grading process, please feel free to contact our customer care team.