08:00 – 16:00

Monday to Friday

(021)761 1746

Welcome to The Gem Lab, we have over 30 years of expertise
September 27, 2021

08:00 – 16:00

Monday to Friday

(021)761 1746

Expert Jewellery

Done While You Wait
by an Accredited Senior Gemmologist (AGA)

Our Services
Contact Us Today

Expert Gem And
Jewellery Appraisals

We bring decades of proven
industry expertise

Friendly Assistance

The Gem Lab is the place to go for
all your gemstone appraisals and training.


Do your staff have all the answers when it comes to questions about gemstones? Would you like them to…

Grading System

The ICSL system was introduced to the trade in 1982 by the Independent Coloured Stones Laboratory…

Lab Reports

We offer impartial, unbiased valuations on jewellery, diamonds and coloured gemstones. Unbiased because…

Services and Fees

Download the 2020 price list here.

Synthetic and artificially treated gemstones are passing through the trade undetected…

View Services

About Us

The Gem Lab is the place to go for all your gemstone certification, appraisals and training. With highly qualified staff and an owner who loves to share his knowledge, you’ll be pleased you called.

For the past 30 years (1989 – 2019) we have offered a professional service to the industry. Jeremy Rothon started his career under the guidance of the world renowned gemmologist, Ian Campbell.

The Gem Lab adhere to the international grading standards, and to ensure that every customer entrusted to each of our precious stones in the world’s most accurate and consistent color gem identification and grading.

You can rest assured that The Gem Lab certified gems are thoroughly checked and graded by a qualified and experienced gemmologist. That’s why dealers from around the world insist on The Gem Lab certificates.

Frequently Asked Questions

Who Does The Jewellery Valuations?

All valuations are performed by Jeremy Rothon FGA. To schedule an appointment, kindly click here or call me on 021 761 1746.

How Long Does Jewellery Evaluations Take?

Done while you wait by a qualifed Accredited Senior Gemmologist (AGA)

How Much Does a Single Evaluation Cost?

Please visit our Expert Jewellery Evaluations page for more information about our evaluations



Here’s what just some of our clients have said

Jeremy Rothon has been known to me for a good many years. He was a good reliable member of the South African Gemmological Association and started up his own labortary in Durban South Africa where from…
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Michael B. Sutherland, F.G.A

I have personally known Jeremy for approximately thirty years. Therefore it is with great pleasure that I had an opportunity to be able to give this testimonial in respect of his personal and academic…
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Ian C.C. Campbell, F.G.A.(UK).

Request a Call Back

Would you like to speak to one of our Gemmologist? Just submit your details and we’ll be in touch shortly or phone 082 653 4567 between 08:00 and 16:00 Monday to Friday — we would be delighted to speak. You can also email us if you would prefer.

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