Latest Pieces
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0.47ctw Natural Sapphire and Moissanite Eternity Stacking Ring
Regular price $264.00Regular priceUnit price per -
1.52 CTW Cushion Cut Ruby and Natural Diamond Three-Stone Engagement Ring in Platinum
Regular price $6,755.00Regular priceUnit price per -
2.97 CTW Aquamarine and Natural Diamond Three-Stone Ring in Platinum
Regular price $5,267.00Regular priceUnit price per -
5.40 CTW Oval Cut Kyanite and Moissanite Halo Ring in Sterling Silver
Regular price $670.00Regular priceUnit price per
Featured Collections
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Royal Jewels
Step into a world of timeless style and regal opulence with our...
Who are We?
From cluttering the living room table to gracing the red carpet, Katherine has taken her small profile on Facebook Marketplace to appearing on the pages of Vogue.
Katherine’s passion for gemstones turned her family business into the destination for statement pieces - exceptional jewellery at irresistible prices. Now based in London's Hatton Garden, KJJ ships securely all over the world.
Shop Set Fair Rings
When choosing a ring, it has to be beautiful, but it also has to be comfy, it’s no good if it catches on everything, doesn't sit right, or digs into adjacent fingers. Click here to read more about what a set fair ring is and why it's important to consider.
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11.86 Carat Cushion Cut Mint Tourmaline and 1.88ctw Natural Diamond Ring in Platinum
Regular price $20,277.00Regular priceUnit price per -
2.77 CTW Colombian Emerald and Natural Diamond Three Stone Engagement Ring Platinum
Regular price $18,864.00Regular priceUnit price per -
1.92ctw Oval-Cut Ruby and Natural Diamond Halo Ring in Platinum
Regular price $9,459.00Regular priceUnit price per -
3.20 Carat Aquamarine and 1.19ctw Natural Diamond Ring in Platinum
Regular price $12,164.00Regular priceUnit price per
Shop Cocktail Rings
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8.00 Carat Emerald Cut Green Tourmaline and Diamond Ring in 18ct White Gold
Regular price $12,164.00Regular priceUnit price per -
4.39 Carat Cushion Cut Pink Tourmaline and Natural Diamond Ring in Platinum
Regular price $7,161.00Regular priceUnit price per -
23.62 Carat Certified Unheated Yellow Sapphire and Old Cut Diamond Antique Ring
Regular price $47,322.00Regular priceUnit price per -
7.64 Carat Certified Blue Ceylon Sapphire and Diamond Engagement Ring in Platinum
Regular price $47,322.00Regular priceUnit price per
The Heritage Collection
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Heritage 1.00 CTW + Old Cut Lab Grown Diamond Three Stone Trilogy Engagement Ring, at Least F Colour / VS Clarity
Regular price $3,313.00Regular priceUnit price per -
Heritage 4.00CT + Brilliant Cut Lab Grown Diamond Three Stone Engagement Ring, at Least F Colour / VVS Clarity
Regular price $3,990.00Regular priceUnit price per -
Heritage 4.00 CTW + Old Cut Lab Grown Diamond Solitaire Engagement Ring, at Least F Colour / VS Clarity
Regular price $8,046.00Regular priceUnit price per -
Heritage 3.25 CTW + Old Cut Lab Grown Diamond Engagement Ring, at Least F Colour / VS Clarity
Regular price $6,694.00Regular priceUnit price per
