The Ultimate Guide to Diamond Certification: GIA, IGI, and AGS Explained

In the world of fine jewelry, a diamond's certification is the hallmark of its authenticity, quality, and value. At Lucellia, we believe that an informed choice is the foundation of true luxury. This guide delves into the leading diamond certification bodies—GIA (Gemological Institute of America), IGI (International Gemological Institute), and AGS (American Gem Society)—empowering you to select a gem that reflects your discerning taste.

GIA is renowned for its rigorous standards and the creation of the 4Cs (Cut, Color, Clarity, and Carat Weight), setting the global benchmark for diamond grading. IGI offers comprehensive reports with a focus on consistency, while AGS emphasizes cut quality with its precise light performance analysis. Understanding these distinctions ensures your diamond not only sparkles but also carries a legacy of trust.

Discover Our Picks

Explore our curated selection of certified diamond pieces, where artistry meets impeccable quality.

Round Cut Diamond Engagement Ring with Floral Twist Marquise Accent Band

Geometric Diamond Block Hoop Earrings with Sculptural Band Design

Asscher Cut Halo Engagement Ring with Pavé Diamond Band