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Frequently Asked Questions

Last updated: 10 September 2026

Answers to the questions we are asked most often. Can't find yours? Contact us or call +44 7903 181008.

About Ovadia Jewellery

Where is your showroom and do I need an appointment?

We are at 20 Hatton Garden, Holborn, London EC1N 8BA – in the heart of London’s jewellery quarter, with our workshop on site. Walk-ins are welcome during opening hours; for bespoke consultations we recommend booking a time by phone or WhatsApp.

Diamonds

Do you sell mined (natural) diamonds?

Yes. Our natural diamonds are ethically sourced and supplied with an independent grading report from the GIA (Gemological Institute of America). Every GIA-graded diamond carries a laser inscription on the girdle that matches its certificate.

Do you sell lab-grown diamonds?

Yes. Lab-grown diamonds are chemically and optically identical to mined diamonds and offer more carat for your budget. Our lab-grown diamonds come with an IGI (International Gemological Institute) report so you know exactly what you are buying.

What is the difference between a natural and a lab-grown diamond?

Only their origin. Natural diamonds formed in the earth over millions of years; lab-grown diamonds are created in a laboratory under the same conditions. Both are real diamonds and are graded on the same 4Cs – cut, colour, clarity and carat. A natural diamond holds rarity value; a lab-grown diamond gives you a larger or higher-quality stone for the same price. We are happy to show you both side by side.

Can I bring my own diamond or gemstone?

Yes. We regularly set stones supplied by our clients and can redesign or remodel jewellery you already own.

Bespoke jewellery

How does the bespoke process work?

We start with a conversation about the style, stones and budget you have in mind. Our designer prepares sketches or a 3D render for your approval, we source the stones, and our craftsmen make the piece by hand in our Hatton Garden workshop. You are welcome to see the work in progress.

How long does a bespoke piece take?

Typically three to six weeks from approved design, depending on complexity and stone sourcing. If you have a date in mind – a proposal, a wedding, an anniversary – tell us and we will plan around it.

Can you resize or repair jewellery?

Yes. Ring resizing, stone replacement, re-tipping claws, polishing and rhodium plating are all done in our own workshop.

Buying and after-care

Do you deliver?

Yes – see our Delivery Policy. Most clients prefer to collect from the showroom so we can check the fit and finish together.

What if I change my mind?

Our Refund and Returns Policy explains your options for ready-made and bespoke pieces.

Are your prices fixed?

Prices shown on the website are guide prices. Because most pieces are made to order, we confirm the final price with you before any work begins.

Do you offer insurance valuations?

Yes. Every piece we make can be supplied with a written valuation for insurance purposes.

About this website

What happens to the details I send through the contact form?

They are used only to answer your enquiry. Enquiries are handled in a customer-management system operated for us by LegoTechApps; see our Privacy Policy.

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OvadiaJewellery · Hatton Garden