What Is an IGI Certified Diamond? | Understanding Lab-Grown Diamond Grading

Shopping for a lab-grown diamond engagement ring or fine jewelry? One of the most important things to look for is certification. At Eternal Jewelry LV, we proudly use IGI certified lab-grown diamonds in our collections — but what does that really mean?

What Is the IGI?

IGI stands for the International Gemological Institute, one of the world’s most respected diamond grading laboratories. Established in 1975, IGI provides trusted certification for both natural and lab-grown diamonds. Their grading reports are recognized globally by jewelers, retailers, and consumers alike.

What Does IGI Certification Mean?

An IGI certified diamond has been independently inspected and graded based on the 4Cs:

• Cut – How well the diamond is shaped and faceted
• Color – Graded from D (colorless) to Z (light color); F is near colorless and exceptional
• Clarity – Measures internal inclusions and surface flaws (we use VS2 or better)
• Carat weight – The size of the diamond

The IGI certification ensures you know exactly what you’re buying — no guesswork, no inflated claims.

Why Certification Matters for Lab-Grown Diamonds

Lab-grown diamonds are real diamonds — chemically and physically identical to mined ones — but without the environmental and ethical concerns. Certification ensures transparency, quality, and resale value.

IGI is especially important in the lab-grown industry because it:

• Confirms the diamond is truly lab-created (not imitation or moissanite)
• Helps you compare diamonds confidently
• Builds trust between you and the jeweler

Why Eternal Jewelry LV Only Uses IGI Certified Lab-Grown Diamonds

At Eternal Jewelry LV, every engagement ring, wedding band, and fine jewelry piece is crafted using IGI certified lab-grown diamonds with a minimum of:

• F Color (near colorless)
• VS2 Clarity (very slight inclusions)
• Excellent or Ideal Cut (where available)

All diamonds are hand-selected, set in 14k or platinum, and handcrafted in our Las Vegas-area studio. We believe in transparency, and we stand by the quality of every piece we sell.

How to Shop IGI Certified Lab-Grown Diamonds

When shopping online for a lab-grown diamond ring:

• Look for clear grading info (Color, Clarity, Carat)
• Ask if the diamond is IGI or GIA certified
• Request the report number if needed

With Eternal Jewelry LV, you never have to ask — every lab-grown center stone 1 carat or larger is IGI certified.

Explore Our Collection

Ready to shop with confidence? Browse our lab-grown diamond engagement rings or diamond wedding bands to find your perfect piece today.

Each order includes:

• Free insured shipping
• Elegant gift packaging
• 30-day return window
• Lifetime craftsmanship warranty

Start shopping our certified lab-grown diamond jewelry today →