EXQUISITE FINE JEWELLERY

A beautifully curated collection of modern, vintage and antique fine jewellery.

Specialising in natural coloured gemstones, we provide those in-the-know with heirloom-quality antique jewels, unique engagement rings, and fabulous red carpet ready baubles. Based in London, we ship packages of delight worldwide!

Exceptional colourful Jewels

The Diamond Department

It’s finally feeling a bit summery!!

Colourful Engagement Rings

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What are Moissanites?

This Other-Worldly Gem Makes for a Unique Alternative to Diamonds. Moissanites are harder than a Sapphire and sparklier than a Diamond, but ring in at a fraction of the price.

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OUR CLIENTS

★★★★★

I am stunned by how fabulous my rings from Katherine James Jewellery are; they bring me such joy when I wear them. Perfect service and the cherry on the cake is that Katherine is such a lovely lady and her ethos to customer service is out of this world. I wouldn’t buy from anywhere else. Trust me you will not be disappointed.

Kerri
★★★★★

I bought a beautiful Sapphire and Diamond ring in platinum in an unusual design. Katherine was friendly and helpful. I was worried about buying online and not seeing the piece in person, but now, I will hopefully purchase more when I get pennies saved up! Thank you.

Eleanor
★★★★★

Hi Katherine, I have bought a couple of pieces from you, including my gorgeous ring in Yellow Gold with Diamonds. You were very helpful and had the ring delivered in ultra-quick time. Thanks again.

Maureen
★★★★★

I have bought numerous beautiful pieces of jewellery from Katherine James Jewellery. Katherine is an amazing lady who gives amazing customer service. Would highly recommend. Top class jewellery.

Caroline
★★★★★

I’ve made multiple, fabulous purchases from Katherine James Jewellery. I have had them all valued and they were  unanimously estimated at double or triple the price I paid.

Mary

KJJ.DIAMONDS

Diamonds that don’t cost the earth

Check out our new Diamond department to shop our range of Lab Grown Diamonds, from engagement rings to tennis bracelets, there is something for every occasion!

KJJ Diamonds

Moissanite Collection

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1.74ct SAPPHIRE AND DIAMOND RING

3.00 CTW ANTIQUE OLD CUT MOISSANITE HALO RING

22.00ct AQUAMARINE IN 18CT WHITE GOLD

AS SEEN ON…

Why Choose Us

What are old cuts?

Uncover the journey from point cut to the modern brilliant cut.

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PURPLE REIGN

How Amethyst became the world’s most popular purple gem.

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A SPOT OF CITRINE

Who can resist a drop of precious, year-round sunshine?

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What's Your Bridal Style?

Take our Quiz and Discover Everything You Need for the Big Day
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