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Check out these collections.

Allum & Sidaway Ear Styling Collection
Allum & Sidaway Engagement Collection
Initial Necklaces

Diamond Jewellery

Discover our diamond jewellery collection at Allum & Sidaway, where exceptional craftsmanship meets enduring elegance. Including beautifully crafted diamond rings, refined diamond necklaces, elegant diamond earrings, and many more captivating choices, each piece is designed to be treasured for a lifetime.

Diamond Jewellery

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Fine Jewellery Jewellery 18ct Yellow Gold 0.46ct Diamond Heart Solitaire Ring 0101886

18ct Yellow Gold 0.46ct Diamond Heart Solitaire Ring

Fine Jewellery

$3,816.00

Fine Jewellery Jewellery Platinum 1.00ct Cushion Cut Solitaire Ring 0101879

Platinum 1.00ct Cushion Cut Solitaire Ring

Fine Jewellery

$8,594.00

Fine Jewellery Jewellery Platinum 1.00ct Oval Cut Diamond Solitaire Ring 0101876

Platinum 1.00ct Oval Cut Diamond Solitaire Ring

Fine Jewellery

$8,182.00

Fine Jewellery Jewellery Platinum 0.72ct Pear Cut Diamond Solitaire Ring 0101877

Platinum 0.72ct Pear Cut Diamond Solitaire Ring

Fine Jewellery

$5,397.00

Fine Jewellery Jewellery 18ct Yellow Gold 0.90ct Cushion Cut Diamond Solitaire Ring 0101872

18ct Yellow Gold 0.90ct Cushion Cut Diamond Solitaire Ring

Fine Jewellery

$7,907.00

Fine Jewellery Jewellery 9ct Yellow Gold 0.20ct Diamond Wreath Necklace 1417047

9ct Yellow Gold 0.20ct Diamond Wreath Necklace

Fine Jewellery

$949.00

Fine Jewellery Jewellery Platinum 1.04ct Pear Cut Diamond 3 Stone Ring 0103356

Platinum 1.04ct Pear Cut Diamond 3 Stone Ring

Fine Jewellery

$13,063.00

Fine Jewellery Jewellery Platinum 0.63ct Cushion Cut Diamond 3 Stone Ring 0103354

Platinum 0.63ct Cushion Cut Diamond 3 Stone Ring

Fine Jewellery

$5,356.00

Fine Jewellery Jewellery 18ct Yellow Gold 2.01ct Oval Cut Diamond Solitaire Ring 0101884

18ct Yellow Gold 2.01ct Oval Cut Diamond Solitaire Ring

Fine Jewellery

$26,814.00

Fine Jewellery Jewellery 18ct Yellow, White And Rose Gold 0.50ct Diamond Scatter Ring 0115105

18ct Yellow, White And Rose Gold 0.50ct Diamond Scatter Ring

Fine Jewellery

$3,431.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond Star Single Hoop Earring 1222050
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond Star Single Hoop Earring 1222050

A&S Ear Styling Collection 14ct White Gold Diamond Star Single Hoop Earring

Allum & Sidaway

$172.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond 3 Stone Single Hoop Earring 1222044
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond 3 Stone Single Hoop Earring 1222044

A&S Ear Styling Collection 14ct White Gold Diamond 3 Stone Single Hoop Earring

Allum & Sidaway

$255.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond Single Hoop Earring 1222030
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond Single Hoop Earring 1222030

A&S Ear Styling Collection 14ct White Gold Diamond Single Hoop Earring

Allum & Sidaway

$406.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Diamond Single Hoop Earring 1222029
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Diamond Single Hoop Earring 1222029

A&S Ear Styling Collection 14ct Yellow Gold Diamond Single Hoop Earring

Allum & Sidaway

$406.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond 3 Stone Single Hoop Earring 1222028

A&S Ear Styling Collection 14ct White Gold Diamond 3 Stone Single Hoop Earring

Allum & Sidaway

$241.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Diamond 3 Stone Single Hoop Earring 1222027
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Diamond 3 Stone Single Hoop Earring 1222027

A&S Ear Styling Collection 14ct Yellow Gold Diamond 3 Stone Single Hoop Earring

Allum & Sidaway

$241.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond Single Hoop Earring 1222024
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond Single Hoop Earring 1222024

A&S Ear Styling Collection 14ct White Gold Diamond Single Hoop Earring

Allum & Sidaway

$241.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Diamond Single Hoop Earring 1222023
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Diamond Single Hoop Earring 1222023

A&S Ear Styling Collection 14ct Yellow Gold Diamond Single Hoop Earring

Allum & Sidaway

$241.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond Star Single Stud Earring 1222018
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond Star Single Stud Earring 1222018

A&S Ear Styling Collection 14ct White Gold Diamond Star Single Stud Earring

Allum & Sidaway

$159.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond Star Single Stud Earring 1222016
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Diamond Star Single Stud Earring 1222016

A&S Ear Styling Collection 14ct White Gold Diamond Star Single Stud Earring

Allum & Sidaway

$179.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Diamond Star Single Stud Earring 1222015
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Diamond Star Single Stud Earring 1222015

A&S Ear Styling Collection 14ct Yellow Gold Diamond Star Single Stud Earring

Allum & Sidaway

$179.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Triple Diamond Ball Single Stud Earring 1222012
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct White Gold Triple Diamond Ball Single Stud Earring 1222012

A&S Ear Styling Collection 14ct White Gold Triple Diamond Ball Single Stud Earring

Allum & Sidaway

$165.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Triple Diamond Ball Single Stud Earring 1222011
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Triple Diamond Ball Single Stud Earring 1222011

A&S Ear Styling Collection 14ct Yellow Gold Triple Diamond Ball Single Stud Earring

Allum & Sidaway

$165.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Diamond Eye Single Stud Earring 1222009
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold Diamond Eye Single Stud Earring 1222009

A&S Ear Styling Collection 14ct Yellow Gold Diamond Eye Single Stud Earring

Allum & Sidaway

$152.00

Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold 0.05ct 3 Stone Diamond Single Stud Earring 1222001
Allum & Sidaway Jewellery A&S Ear Styling Collection 14ct Yellow Gold 0.05ct 3 Stone Diamond Single Stud Earring 1222001

A&S Ear Styling Collection 14ct Yellow Gold 0.05ct 3 Stone Diamond Single Stud Earring

Allum & Sidaway

$200.00

Allum & Sidaway Jewellery A&S Engagement Collection 18ct Yellow Gold 0.50ct Diamond 3 Stone Ring 0120562
Allum & Sidaway Jewellery A&S Engagement Collection 18ct Yellow Gold 0.50ct Diamond 3 Stone Ring 0120562

A&S Engagement Collection 18ct Yellow Gold 0.50ct Diamond 3 Stone Ring

Allum & Sidaway

$2,957.00

Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.25ct Diamond Solitaire 0120501
Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.25ct Diamond Solitaire 0120501

A&S Engagement Collection Platinum 0.25ct Diamond Solitaire

Allum & Sidaway

$2,331.00

Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.30ct Oval Cut Diamond Solitaire 0120271
Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.30ct Oval Cut Diamond Solitaire 0120271

A&S Engagement Collection Platinum 0.30ct Oval Cut Diamond Solitaire

Allum & Sidaway

$2,606.00

Allum & Sidaway Jewellery A&S Engagement Collection 18ct Yellow Gold 0.50ct Diamond 3 Stone Ring 0120262
Allum & Sidaway Jewellery A&S Engagement Collection 18ct Yellow Gold 0.50ct Diamond 3 Stone Ring 0120262

A&S Engagement Collection 18ct Yellow Gold 0.50ct Diamond 3 Stone Ring

Allum & Sidaway

$2,957.00

Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.25ct Diamond Solitaire 0120441
Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.25ct Diamond Solitaire 0120441

A&S Engagement Collection Platinum 0.25ct Diamond Solitaire

Allum & Sidaway

$2,469.00

Fine Jewellery Jewellery Platinum 0.80ct Diamond Twist Solitaire With Stone Set Shoulders 0101859

Platinum 0.80ct Diamond Twist Solitaire With Stone Set Shoulders

Fine Jewellery

$6,188.00

Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.50ct Diamond 3 Stone Ring 0120561
Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.50ct Diamond 3 Stone Ring 0120561

A&S Engagement Collection Platinum 0.50ct Diamond 3 Stone Ring

Allum & Sidaway

$2,957.00

Allum & Sidaway Jewellery A&S Engagement Collection 18ct Yellow Gold 0.50ct Diamond Solitaire 0120504

A&S Engagement Collection 18ct Yellow Gold 0.50ct Diamond Solitaire

Allum & Sidaway

$3,569.00

Allum & Sidaway Jewellery A&S Engagement Collection 18ct Yellow Gold 0.34ct Diamond Solitaire 0120404

A&S Engagement Collection 18ct Yellow Gold 0.34ct Diamond Solitaire

Allum & Sidaway

$2,544.00

Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.32ct Oval Cut Diamond Solitaire 0120571
Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.32ct Oval Cut Diamond Solitaire 0120571

A&S Engagement Collection Platinum 0.32ct Oval Cut Diamond Solitaire

Allum & Sidaway

$2,606.00

Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.25ct Diamond Solitaire With Diamond Set Shoulders 0120421
Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.25ct Diamond Solitaire With Diamond Set Shoulders 0120421

A&S Engagement Collection Platinum 0.25ct Diamond Solitaire With Diamond Set Shoulders

Allum & Sidaway

$3,156.00

Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.51ct Diamond Solitaire With Diamond Set Shoulders 0120325
Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.51ct Diamond Solitaire With Diamond Set Shoulders 0120325

A&S Engagement Collection Platinum 0.51ct Diamond Solitaire With Diamond Set Shoulders

Allum & Sidaway

$4,469.00

Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.25ct Diamond Solitaire With Diamond Set Shoulders 0120321
Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.25ct Diamond Solitaire With Diamond Set Shoulders 0120321

A&S Engagement Collection Platinum 0.25ct Diamond Solitaire With Diamond Set Shoulders

Allum & Sidaway

$3,156.00

Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.61ct Diamond Solitaire 0120307

A&S Engagement Collection Platinum 0.61ct Diamond Solitaire

Allum & Sidaway

$4,806.00

Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.51ct Diamond Solitaire With Diamond Set Shoulders 0120225
Allum & Sidaway Jewellery A&S Engagement Collection Platinum 0.51ct Diamond Solitaire With Diamond Set Shoulders 0120225

A&S Engagement Collection Platinum 0.51ct Diamond Solitaire With Diamond Set Shoulders

Allum & Sidaway

$4,469.00

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Discover Our Selection of Diamond Jewellery

Our immaculate collection of diamond jewellery at Allum & Sidaway features a divine range of options to help you find the perfect choice, whether you’re treating that special someone or yourself. No matter if you’re looking for an everyday contemporary piece or wedding jewellery that your partner will cherish for years to come, you can find exceptional choices to suit all needs and tastes here. 

Laboratory-Grown Diamond Jewellery

In our collection, you can find many exquisite laboratory-grown diamond jewellery pieces. These retain all of the qualities of natural diamonds, while being significantly more affordable and conflict-free. With these choices, you can shop hand-crafted diamond jewellery that not only comes at a much lower price but has also been sourced from fully ethical origins.

If you’d like to know anything more about our UK diamond jewellery collection or any of our other timeless jewellery pieces, contact us today, and a member of our experienced team will gladly assist you.