Fine Jewellery and Engagement Ring Specialists

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!

Our Engagement Rings

View all

4.00 CTW No Heat Blue Ceylon Sapphire and Diamond Three Stone Engagement Ring in 18ct White Gold

$14,074.00

4 carat Diamond Trilogy Engagement Ring in White Gold

4.00 CTW Diamond Trilogy Engagement Ring in 18ct White Gold

$38,393.00

1.40 Carat Oval Cut Moissanite Solitaire Engagement Ring

$192.00

4.57 Carat Blue Ceylon Sapphire and Diamond Halo Engagement Ring in 18ct White Gold

$19,193.00

3 Carat Emerald and Diamond Three Stone Engagement Ring in Yellow Gold

4.00 CTW Emerald and Diamond Three Stone Engagement Ring in 18ct Yellow Gold

$10,618.00

Oval Cut Blue Ceylon Sapphire Unheated and Diamond Art Deco Style Engagement Ring in Platinum

7.64 Carat Certified Blue Ceylon Sapphire and Diamond Engagement Ring in Platinum

$44,792.00

5.33 CTW Oval Ruby and Diamond Halo Vintage Engagement Ring in 14ct White Gold

$20,473.00

14 Carat Oval Cut Ceylon Blue Sapphire Unheated Engagement Ring in Yellow Gold Katherine James Jewellery

14.10 Carat Certified Unheated Blue Ceylon Sapphire and Diamond Halo Engagement Ring in 18ct Yellow Gold

$51,192.00

3.15 CTW Cushion Cut Pink Ceylon Sapphire and Diamond Halo Engagement Ring in Platinum

$8,058.00

4.50 Carat Oval Tsavorite Green Garnet and Diamond Halo Engagement Ring

4.50 Carat Tsavorite Garnet and Diamond Halo Engagement Ring in 18ct Yellow Gold

$8,058.00

1.85 Carat Emerald Cut Moissanite Solitaire Engagement Ring

$224.00

3.50 Carat Round Tsavorite Green Garnet and Diamond Halo Bezel Engagement Ring in Yellow Gold

3.50 Carat Tsavorite Garnet and Diamond Halo Engagement Ring in 18ct Yellow Gold

$7,674.00

1.15 CTW Emerald-Cut Diamond Halo Engagement Ring in Platinum

$4,730.00

Antique style Ruby and Diamond Halo Engagement Ring in Yellow Gold

1.90 CTW Ruby and Diamond Halo Engagement Ring in 18ct Yellow Gold

$4,218.00

1.30 Carat Oval Blue Ceylon Sapphire and Diamond Halo Engagement Ring in Platinum and 18ct Yellow Gold

$4,218.00

Oval Cut Tanzanite and Diamond Three Stone Bezel Set Engagement Ring in Platinum

2.30 CTW Oval Tanzanite and Diamond Three-Stone Engagement Ring in Platinum

$3,322.00

2.00 Carat Round Brilliant Lab-Made Diamond Three Stone Engagement Ring in Platinum Katherine James Jewellery

2.00 CTW Round Cut Lab Grown Diamond Three Stone Engagement Ring in Platinum

$2,240.00

1 Carat Emerald Cut Pink Sapphire and Diamond Art Deco Engagement Ring in Platinum Katherine James Jewellery

1.00 Carat Pink Sapphire and Diamond Art Deco Halo Engagement Ring in Platinum

$2,810.00

1.20 Carat Ceylon Violet Blue Sapphire and Diamond Halo Engagement Ring in Platinum

$2,554.00

1.50 Carat Emerald Cut Tanzanite and Diamond Engagement Ring in Platinum

$2,426.00

10.06 Carat Emerald Cut Moissanite Halo Engagement Ring in Sterling Silver

$468.00

1.00 Carat Round Brilliant Lab Made Diamond Engagement Ring in Platinum

1.00 Carat Round Brilliant Cut Lab Grown Diamond Engagement Ring in Platinum

$1,600.00

Antique Edwardian Blue Sapphire and Old Cut Diamond Three Stone Engagement Ring

0.60 CTW Antique Blue Sapphire and Old Cut Diamond Engagement Ring in 18ct Yellow Gold

$890.00

8.65 Carat Emerald Cut Moissanite Engagement Ring Katherine James Jewellery

8.65 Carat Emerald Cut Moissanite Solitaire Engagement Ring in Sterling Silver / 9ct Gold / 18ct Yellow Gold

$634.00

6.45 CTW Round Brilliant Cut Moissanite Solitaire Engagement Ring in Sterling Silver

$506.00

5.65 CTW Oval Cut Moissanite Three Stone Engagement Ring in Sterling Silver

$506.00

4.96 Carat Emerald Cut Moissanite Three Stone Engagement Ring in Sterling Silver

$378.00

5 Carat Emerald Cut Moissanite Engagement Ring in Sterling Silver Katherine James Jewellery

4.60 Carat Emerald Cut Moissanite Solitaire Engagement Ring in Sterling Silver

$506.00

5.50 Carat Asscher Cut Moissanite Engagement Ring Katherine James Jewellery

5.50 Carat Asscher Cut Moissanite Solitaire Engagement Ring

$506.00

7 Carat Round Brilliant Cut Moissanite Engagement Cocktail Ring

7.50 Carat Round Brilliant Cut Moissanite Solitaire Engagement Ring in Sterling Silver

$352.00

4 Carat Emerald Cut Moissanite Halo Engagement Ring Katherine James Jewellery

4.50 CTW Emerald Cut Moissanite Halo Engagement Ring

$416.00

5.00 Carat Round Cut Moissanite Solitaire Engagement Ring in Sterling Silver

$416.00

3.38 CTW Moissanite Daisy Halo Engagement Ring

$378.00

3.41 Carat Oval Cut Moissanite Solitaire Engagement Ring in Sterling Silver

$378.00

3.50 Carat Asscher Cut Moissanite Solitaire Engagement Ring in Sterling Silver / 9ct Gold / 18ct Gold

$378.00

3.50 Carat Emerald Cut Moissanite Engagement Ring Katherine James Jewellery

3.50 Carat Emerald Cut Moissanite Solitaire Engagement Ring

$378.00

4.50 CTW Oval Moissanite Halo Engagement Ring in Sterling Silver / 9ct Gold / 18ct Gold

$378.00

2.00 CTW Emerald Cut Moissanite Three Stone Engagement Ring in Sterling Silver

$250.00

2.06 Carat Oval Cut Moissanite Solitaire Engagement Ring

$250.00

2.08 Carat Round Cut Moissanite Solitaire Engagement Ring in Sterling Silver

$250.00

10.69 Carat Emerald Cut Moissanite Solitaire Engagement Ring

$762.00

1.00 Carat Round Cut Moissanite Halo Engagement Ring

$160.00

1.00 Carat Round Cut Moissanite Solitaire Engagement Ring

$160.00

1.00 Carat Round Cut Solitaire Moissanite Engagement Ring

$160.00

13.72 Carat Round Cut Moissanite Statement Solitaire Engagement Ring

$442.00

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.

Shop Our Cocktail RIngs

View all

Peridot and Chrome Diopside Christmas Ring in Sterling Silver

$314.00

8.17 CTW Oval Cut Citrine and Moissanite Halo Cocktail Ring in Sterling Silver / 9ct Gold / 18ct Gold

$608.00

Amethyst and Citrine Halo Cocktail Ring in Sterling Silver

$250.00

Glorious Garnet and Amethyst Halo Cocktail Ring in Sterling Silver

$276.00

12.00 Carat Cushion-Cut Tanzanite and Diamond Ring in Platinum

$19,193.00

19.23 Carat Certified Unheated Yellow Sapphire, Black Onyx and Diamond Antique Art Deco Ring

$24,313.00

23.62 Carat Certified Unheated Yellow Sapphire and Old Cut Diamond Antique Ring

$44,792.00

Colombian Emerald and Pave Diamond Vintage Bombe Cocktail RIng Katherine James Jewellery

10.53 CTW Asscher Cut Colombian Emerald and Diamond Bombe Cocktail Ring in 18ct Gold

$38,393.00

Blue Topaz and Moissanite Halo Cocktail Engagement Ring in Sterling Silver

4.25 CTW Oval Cut Blue Topaz and Moissanite Halo Cocktail Ring

$416.00

Vintage 6.00 Carat Emerald and Double Halo Diamond Ring in Yellow Gold

6.00 CTW Vintage Emerald and Diamond Double Halo Cocktail Ring in 18ct Yellow Gold

$8,954.00

Oval-Cut Citrine Halo Cocktail Ring in Sterling Silver

$237.00

Step Cut Green Amethyst Prasiolite Cocktail Ring in Sterling Silver

Beautiful Emerald Cut Green Amethyst Ring in Sterling Silver

$141.00

Lilac Pastel Rose de France Amethyst and Pink Tourmaline Halo Cocktail Ring in Sterling Silver

Lilac Amethyst and Pink Tourmaline Halo Cocktail Ring in Sterling Silver

$250.00

3 Carat Green Tourmaline and Diamond Cocktail Ring in White Gold

3.00 Carat Green Tourmaline and Diamond Ring in 18ct White Gold

$1,530.00

Oval cut Amethyst and Blue Topaz Three Stone Cocktail Right Hand Ring in Sterling Silver

Oval-Cut Amethyst and Blue Topaz Three Stone Ring in Sterling Silver

$148.00

3.50 Carat Tsavorite Garnet and Diamond Halo Engagement Ring in 18ct Yellow Gold

$7,674.00

Pear Cut Blue Topaz and Blue Sapphire Halo Cocktail Ring in Sterling Silver

$186.00

4.50 Carat Tsavorite Garnet and Diamond Halo Engagement Ring in 18ct Yellow Gold

$8,058.00

Beautiful Emerald Cut Amethyst Ring in Sterling Silver

$160.00

Asscher Cut Blue Topaz and Pink Tourmaline Double Halo Cocktail Ring in Sterling Silver

$212.00

Oval Purple and Green Amethyst Halo Bezel Cocktail Ring in Sterling Silver

Oval Cut Green and Purple Amethyst Halo Cocktail Ring in Sterling Silver

$212.00

Garnet, Amethyst and Citrine Birthstone Flower Cluster Cocktail Ring in Sterling Silver

Red Garnet, Citrine and Amethyst Daisy Halo Cocktail Ring in Sterling Silver

$148.00

Oval Citrine and Red Garnet Halo Cocktail Ring in Sterling Silver

Oval-Cut Citrine and Garnet Halo Cocktail Ring in Sterling Silver

$237.00

Oval Cut Red Garnet and Pink Tourmaline Halo Cocktail Ring in Sterling Silver

$212.00

3.15 CTW Cushion Cut Pink Ceylon Sapphire and Diamond Halo Engagement Ring in Platinum

$8,058.00

5.00 Carat Round Cut Citrine Solitaire Ring in Sterling Silver

$173.00

Round Cut Blue Topaz Solitaire November Birthstone Cocktail Ring in Sterling Silver Gifts Under 300

5.00 Carat Round Cut Blue Topaz Solitaire Cocktail Ring in Sterling Silver

$173.00

7.64 Carat Certified Blue Ceylon Sapphire and Diamond Engagement Ring in Platinum

$44,792.00

Emerald cut East West Aquamarine and Diamond Halo Cocktail Ring in Platinum

6.44 CTW East West Emerald Cut Aquamarine and Diamond Halo Cocktail Ring in Platinum

$8,314.00

Huge Colombian Emerald and Diamond Mens Superbowl Ring in Yellow Gold

6.40 Carat Vintage Certified Colombian Emerald and Diamond Ring in 18ct Yellow Gold

$28,153.00

10 Carat Oval Cut Blue Sapphire and Diamond Ballerina Engagement Ring in Platinum

10.46 CTW Blue Ceylon Sapphire and Diamond Ballerina Ring in Platinum

$17,913.00

Diamond pave crescent moon cocktail ring in yellow gold

0.50 CTW Crescent Moon Diamond Ring in 18ct Yellow Gold

$2,426.00

Emerald and Diamond Halo Antique Style engagement ring

2.40 Carat Emerald and Diamond Halo Ring in 18ct White and Yellow Gold

$7,418.00

4.25 CTW Emerald Cut Blue Topaz and Moissanite Halo Cocktail Ring

$416.00

4.50 CTW Oval Cut Kyanite and Moissanite Halo Ring in Sterling Silver / 9ct Gold / 18ct Gold

$634.00

13 Carat Certified Unheated Blue Ceylon Sapphire and Diamond Three Stone Ring in 18ct Yellow Gold

$33,273.00

3.50 Carat Asscher Cut Moissanite Solitaire Engagement Ring in Sterling Silver / 9ct Gold / 18ct Gold

$378.00

4.60 Carat Emerald Cut Moissanite Solitaire Engagement Ring in Sterling Silver

$506.00

10.06 Carat Emerald Cut Moissanite Halo Engagement Ring in Sterling Silver

$468.00

4.25 CTW Emerald Cut Amethyst and Moissanite Halo Cocktail Ring in Sterling Silver

$416.00

4.25 CTW Emerald Cut Citrine and Moissanite Halo Cocktail Ring

$416.00

4.96 Carat Emerald Cut Moissanite Three Stone Engagement Ring in Sterling Silver

$378.00

4.47 Carat Oval Cut Moissanite Oval Halo Ring

$352.00

8.62 CTW Oval Cut Moissanite Halo Ring in Sterling Silver

$416.00

3.43 CTW Round Cut Moissanite Three Stone Ring in Sterling Silver / 9ct Gold / 18ct Gold

$378.00

2.08 Carat Round Cut Moissanite Solitaire Engagement Ring in Sterling Silver

$250.00

1.78 CTW Round Cut Moissanite Three Stone Trilogy Ring

1.78 CTW Round Cut Moissanite Three Stone Ring

$250.00

6.75 Carat Blue Zircon and Diamond Three Stone Ring in 18ct Yellow Gold

$5,114.00

5.71 Carat Emerald Cut Blue Topaz and 2.00 Carat Moissanite Three Stone Ring in Sterling Silver

$365.00

4.45 CTW Oval Cut Green Onyx and Moissanite Halo Cocktail Ring in Sterling Silver

$416.00

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

AS SEEN ON

Nicola Roberts, and Nicole Scherzinger

SEE ALL