Welcome to
The Gem Lab

Price List 2026

Gemstone certification and verification, and jewellery valuations.

About The Gem Lab

The Gem Lab has been serving the gemstone industry for over 30 years. Our owner Jeremy Rothon, began his career learning from the world-renowned gemmologist Ian Campbell.

We provide gemstone certification, jewellery valuations, and training you can trust. Our experienced team is friendly, knowledgeable, and always happy to share their expertise.

The Gem Lab follows international grading standards to ensure every gemstone is identified and graded accurately and consistently by a qualified and experienced gemmologist. This is why gemstone dealers around the world trust and rely on The Gem Lab’s certificates.

What our customers say about us

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Consistent Grading Standards

Jeremy Rothon

The value of a gemstone lies in its quality which is why a consistent grading standards are important. As you know, there are many factors that can impact the value…

Gem Alert – Fake Rough

Jeremy Rothon

It can be all too easy to accidentally buy a fake stone or piece of jewellery that has been marketed as the ‘real thing’, yet with no credible certification. Finely…

Gem Alert – Lab Certificate Fraud

Jeremy Rothon

An authentic lab certificate is an essential part of buying, selling and owning any piece of jewellery or gemstone. I founded The Gem Lab because it’s important to me (and…

Gem Alert – Warning Gem Fraud

Jeremy Rothon

When there’s a gem con doing the rounds, we’re usually the first to know. We find out when you send us gems for certification – and they turn out not…

Gem Alert – All That Glitters

Jeremy Rothon

We value the truth in the trade and believe in sharing our findings with you. The gem alerts are designed to inform you so that you can make wise decisions…

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Taariq F.

6 months ago

Thanks for the response. Just wanted to find out first. Will have to bring it in for assessment and valuation soonest. Given 5 star rating. 🙏🏽

Good day. I’m wanting to know if this can be approved or appraised. Not sure what type of raw gem is this. Will appreciate it. Thank you and regards.

Candace C.

7 months ago

What a lovely experience- thank you for being so kind . Highly recommend The Gem Lab

Paul W.

10 months ago

Jeremy has such a wealth of experience and passion for this subject. His symposium was a treat to be part of and has certainly increased my knowledge of gemstones, even after decades in the industry. Thank you Jeremy & Team, thsi is not the last you see/hear of me.

Lutfur Rahman R.

3 years ago

I was bought a imperial topaz online from India but I wasn't sure about it was real or fake. So I went to Gem Lab to check it. It was quick service. Highly recommended this place.

Stephan le R.

6 years ago

Thank you Jeremy for a 3-day course in jewellery valuation. It was most interesting to have a better understanding of how exactly the 4c's influence the diamond and also the elaboration on the gem stones was absolutely enlightening! I feel far more confident now in my ability to assess a piece in a better regard!

Welcome to The Gem Lab

Gemstone certification and verification, and jewellery valuations.

About The Gem Lab

Consistent Grading Standards

Gem Alert – Fake Rough

Gem Alert – Lab Certificate Fraud

Gem Alert – Warning Gem Fraud

Gem Alert – All That Glitters

Welcome to
The Gem Lab