What are Type IIA Diamonds?
Type IIA Diamonds – the purest form of diamonds found on Earth.
Free from nitrogen and other trace elements, they make up less than 2% of all mined diamonds.
These diamonds are scientifically classified based on their chemical makeup, and Type IIA Diamonds contain no measurable impurities — making them optically clearer and more brilliant.
How Do They Compare to Other Diamond Types?
- Type Ia: The most common, containing clusters of nitrogen atoms, which may give a yellowish tint.
- Type Ib: Contain isolated nitrogen atoms; rarer, often bright yellow.
- Type IIa: The rarest and most pure, completely free from nitrogen and boron
- Type IIb: Extremely rare, with boron atoms that can make them electrically conductive and give a blue tint.
In essence, when you choose a Type IIA diamond from Firefly, you’re not just choosing a gem — you’re choosing a scientific marvel and a rarity of nature, recreated perfectly in the lab.
Why Are They So Rare?
-
Only about 1-2% of mined diamonds qualify as Type IIA.
-
Famous diamonds like the Cullinan and Koh-i-Noor are Type IIA — a testament to their rarity.
-
Their absence of nitrogen makes them exceptionally colorless and more thermally conductive, enhancing their value and beauty
Type IIA Lab-Grown Diamonds
At Firefly Diamonds, our lab-grown diamonds — particularly those made using the Chemical Vapor Deposition (CVD) method — are almost always Type IIA. That’s because CVD allows for tight control over impurities during the growing process.
In fact, this process simulates conditions found in outer space where carbon atoms form in pure environments — resulting in 100% pure carbon diamonds.
Type IIA Diamonds are just the smarter choice:
Unmatched Purity: No nitrogen or boron contamination.
Superior Brilliance: More light refraction equals more sparkle.
Exceptional Color: Often D, E, or F grade – the highest possible on the color scale.
Eco-Friendly: Grown sustainably with lower carbon footprint.
Ethically Made: No mining, no conflict zones.
While all diamonds may look stunning to the naked eye, Type IIA diamonds are simply on another level when it comes to purity, value, and long-term satisfaction.
Firefly’s Type IIA Diamond Advantage
As India’s premier lab-grown diamond brand, Firefly offers exclusively IGI-certified, Type IIA lab-grown diamonds in every piece — whether it’s a delicate ring or a bold solitaire.
Why choose Firefly?
-
VVS/VS clarity with F/G color grading
- Crafted in 9kt, 14kt, and 18kt certified gold
- IGI Certification – a sign of uncompromising quality standards
- Made with precision and love by artisans in India
These aren’t just lab diamonds — they’re lab-perfected Type IIA diamonds.
Identifying Type IIA Diamonds
Though invisible to the naked eye, Type IIA diamonds are identified by specialized spectroscopy and diamond type classification methods, usually certified by gemological labs like IGI.
At Firefly, we ensure that every diamond you purchase comes with:
- Authenticity Certificate (IGI)
- Full details on diamond type and quality
- Transparent grading and documentation
Type IIa diamonds represent the pinnacle of purity in the diamond world. At Firefly, every lab-grown diamond is crafted to embody this excellence — ethically, affordably, and stunningly.
Finally, whether you’re buying your first diamond or upgrading to a statement piece, choose Type IIA for brilliance that lasts a lifetime.
Ready to own the rarest kind of sparkle?
Explore our best-selling Type IIA Diamond rings!
References
Gemological Institute of America (GIA). (n.d.). Diamond Type Classification. Retrieved from https://www.gia.edu/diamond-type-classification
International Gemological Institute (IGI). (n.d.). About Diamond Grading Reports. Retrieved from https://www.igi.org
The Smithsonian Institution. (n.d.). The Cullinan Diamond. Retrieved from https://naturalhistory.si.edu
British Museum. (n.d.). The Koh-i-Noor Diamond: A Royal Gem’s Legacy. Retrieved from https://www.britishmuseum.org
