Gem Alert

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…

Gem Alert – Coated Topaz

Jeremy Rothon

I’ve written to you recently, warning about the trend of coating tanzanite. This beautiful stone is often coated with a substance that enhances its colour (and thus, its value). The…

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.

11 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!