Diamond Certification
A lab-grown diamond is chemically, physically, and optically identical to a mined diamond — same carbon crystal structure, same fire and brilliance. What differs is origin: it's grown in a controlled lab environment rather than mined from the earth. Because the two are indistinguishable to the naked eye, certification is what lets a buyer trust what they're actually getting — the 4Cs (cut, color, clarity, carat), confirmation that the stone is indeed lab-grown, and a permanent record tied to the stone via a laser-inscribed certificate number.
Certification matters for a few concrete reasons:
- Trust and transparency: it independently verifies the stone's quality and origin, so the claim isn't just the seller's word.
- Resale and insurance: a certified stone has a documented grading history, which matters for valuation, insurance, or future resale.
- Fraud protection: it prevents a lab-grown diamond from being misrepresented as natural, or a lower-grade stone from being oversold.
At MavenMint, every lab-grown diamond is certified by one of two labs we work with — GSI (Gemological Science International) and DHC. Both labs grade and verify each stone against standard diamond criteria and issue a certificate that accompanies the piece, giving customers verifiable proof of quality on every diamond we sell.
About GSI.
Gemological Science International (GSI) was founded in 2005 in New York and has since grown to establish a presence across four continents. GSI is recognised as one of the largest gemological laboratories in the world by volume. It distinguishes itself through state-of-the-art technology, ongoing research, and a firm commitment to accuracy and reliability in diamond and gemstone analysis. GSI's team of expert gemologists upholds the highest standards of quality and integrity across every service it provides. You can verify your GSI report by clicking here.
About DHC
DHC Labs (Diamond Hallmarking Center) is a gemological laboratory and institute with a growing presence across 4+ Indian cities. DHC specialises in diamond grading, gemstone identification, and jewellery quality analysis, backed by an international-standard laboratory equipped with cutting-edge gem testing technology. Every diamond and gemstone certified by DHC is assessed by qualified gemologists and backed by a report verification system, allowing certificate authenticity to be instantly cross-checked against their archived database. DHC is also equipped to test and certify lab-grown (CVD) diamonds, reflecting its focus on keeping pace with modern diamond technology. Their commitment to accuracy, transparency, and accessible certification makes DHC a trusted name in gemological testing across India. You can verify your DHC report by clicking here.