Learn About Lab Certification

At iGemz, we give our clients the option to have every gemstone independently certified by one of two reputable gemmological laboratories in South Africa. You can choose between EGL South Africa in Johannesburg or The Gem Lab in Cape Town for professional, unbiased certification. Both laboratories are widely respected in the jewellery industry, providing accurate, reliable reports to give you complete confidence in your purchase.

We take our reputation seriously. Once you’ve purchased your gemstone, we personally deliver it to the lab you select for authentication and grading. Please note that the lab fee is non-refundable, even if the lab declines to certify the gemstone or the gemstone fails their evaluation. This ensures that all certification services are handled professionally and independently.

EGL South Africa – Johannesburg

EGL South Africa is a trusted gemmological laboratory based in Johannesburg, specialising in the certification of diamonds and coloured gemstones. Known for precision and professionalism, their team of expert gemmologists uses state-of-the-art equipment to provide detailed reports on cut, colour, clarity, and carat weight.

EGL certificates not only confirm the quality of your gemstone but also add credibility and value whether you are buying, selling, or collecting. Widely respected by jewellers, dealers, and collectors, EGL South Africa ensures transparent transactions and supports informed purchasing decisions across the South African gem and jewellery industry.

The Gem Lab – Cape Town

Based in Cape Town, The Gem Lab is a leading independent laboratory specialising in diamond and coloured gemstone certification. Known for accuracy, integrity, and professional service, The Gem Lab provides reliable grading reports that meet international standards. Their experienced gemmologists use advanced technology to evaluate every stone, giving you clear, dependable documentation.

Trusted across the jewellery and gemstone market, The Gem Lab ensures transparency and confidence in every transaction. Whether buying, selling, or investing, The Gem Lab delivers expert analysis and independent certification to protect your investment.

Our Commitment to Your Peace of Mind

Every gemstone at iGemz is carefully inspected, measured, graded, and photographed before it is listed on our website. With the additional option of independent laboratory certification, you can purchase with complete peace of mind, knowing that your gemstone has been properly authenticated and supported by a recognised gemmological authority.

For further assurance, if a gemstone does not pass the independent lab verification process, our Terms & Conditions apply. This includes a full refund of the gemstone purchase price, giving you absolute protection and transparency throughout the buying process. Please note that laboratory fees remain non-refundable, as they are charged by the gem lab directly for their professional services.