Answers to our most commonly asked questions.

How do I locate the gemstones I am looking for within the catalogue?

Simply locate the required stone type and then click on the required stone shape. You will then see all the gemstones of that type and shape, in length order, with the largest shown first. You can then click on any gemstone image to view a 360° video and detailed information about the stone. The 'Prev' and 'Next" buttons will allow easily viewing of similar gemstones.

How do I download gemstone videos to share with my customers?

From any of the catalogue pages (where multiple gemstone images are shown), just click the checkbox in the top left-hand corner of one or more of the images. You can then download a videos & image of the stones selected to share with your customers.

Are 'IN STOCK' gemstones always available?

At Mayfair Gems, we only sell stock we own. And although we sell via several industry platforms as well as through our own website, we update our catalogue immediately after every sale and every time a stone is sent out on approval. So, gemstones shown as 'IN STOCK' are always available.

How quickly do you dispatch gemstones?

For added security, we keep all our gemstones at off-site safes. However, we are still able to dispatch gemstones very quickly; for UK orders placed before 1.00pm, we offer delivery before 1.00pm the next working day. International deliveries understandably take longer, but we work with quality trusted partners to make these as efficient as possible.

What does 'OUT ON APPROVAL' mean?

Gemstones shown as 'OUT ON APPROVAL' are with clients and are not currently available to purchase. These stones may be purchased by the clients or may be returned to us and become available for sale again. If you are interested in a gemstone that is 'OUT ON APPROVAL', please let us know. We will then contact you immediately if it becomes available for sale again.

Which clients are eligible for Trade Pricing, the Approval Service and for Credit?

We are only able to offer these services to trade customers (those with companies in the jewellery trade). Approval and credit services are subject to standard credit checks and to terms and conditions. For more information on our trade services, please contact us.

How do I access the Vault?

Our Vault houses a small new private collection aimed specifically at high jewellers, professional investors and established gemstones collectors. For more details, please contact us.

Get Started

View our main gemstone catalogue

Get Started

View our main gemstone catalogue

Get Started

View our main gemstone catalogue

Mayfair Gems Ltd
6 South Molton Street
Mayfair
London
W1K 5QF

Company No. 15601026
Registered In England & Wales

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© 2026 Mayfair Gems Ltd. All Rights Reserved.

Mayfair Gems® is a Registered Trademark owned by Mayfair Gems Ltd. Trademark Number: UK00004263289.

International Trademarks pending. WIPO IRN: 1905162.