South Africa’s trusted Gemological Laboratory

Since 1980

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E.G.L South Africa is an independent Gemological Laboratory specializing in Diamond, Gemstone and Jewellery identification, grading and certification. We opened our doors in 1980 and are 100% South African owned.

We are equipped with both the knowledge and specialized equipment to detect treatments and laboratory-grown diamonds and gemstones.

All our staff are proudly South African and include qualified gemologists and graders with over 25 years’ experience in the industry.

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All our services are done in the laboratory and done carefully, timeously and with efficiency.

Diamond Certification

Grading and certification of all Diamonds, including Fancy Coloured Diamonds and Diamond Jewellery.

Gemstone Certification

We are able to grade and certify all types of Gemstones which include all Precious and Semi-Precious Gemstones, as well as specific Tanzanite & Moissanite reports.

Laboratory-grown and Treated Diamond Certification

We are fully equipped and qualified to detect all types of laboratory-grown, colour treated and Clarity Enhanced Diamonds.

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Location & Contact


1st Floor, E08
Paragon Building
1 Kramer Road,
Bedfordview, 2007
Johannesburg, South Africa


Call us: +27113344527
Call or WhatsApp: +27836569013
Email us:

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