Lab Grown Blue Diamond Engagement Rings

Blue lab grown diamonds combine a deliberate colour choice with diamond sparkle. Compare the centre’s blue tone, shape and setting, from an understated frame to a design with contrasting diamond detail.

Isabella solitaire engagement ring with an oval blue lab-grown diamond centre stone, front view.

ISABELLA
Oval Blue Lab Diamond 950 Platinum Solitaire

From 25 009,00 SEK

Eden vine solitaire engagement ring with a round blue lab-grown diamond centre stone, front view.

EDEN
Round Blue Lab Diamond 950 Platinum Vine Solitaire Ring

From 26 551,00 SEK

Lulu petite solitaire engagement ring with an oval blue lab-grown diamond centre stone, front view.

LULU
Oval Blue Lab Diamond 950 Platinum Petite Solitaire

From 22 304,00 SEK

Grace solitaire engagement ring with a round blue lab-grown diamond centre stone, front view.

GRACE
Round Blue Lab Diamond 950 Platinum Solitaire Ring

From 19 788,00 SEK

Lillie six-prong knife-edge solitaire engagement ring with a round blue lab-grown diamond centre stone, front view.

LILLIE
Round Blue Lab Diamond 950 Platinum 6 Prong Knife Edge Solitaire Ring

From 19 788,00 SEK

Blossom trilogy engagement ring with an oval blue lab-grown diamond centre stone and colourless pear-shaped side diamonds, front view.

BLOSSOM
Oval Blue Lab Diamond & Pear Lab Diamond 950 Platinum Trilogy Ring

From 32 448,00 SEK

Alya starburst cluster engagement ring with a round blue lab-grown diamond centre stone, front view.

ALYA
Round Blue Lab Diamond Starburst Cluster Shoulder Set Engagement Ring 950 Platinum

From 29 932,00 SEK

Lulu petite solitaire engagement ring with an elongated cushion blue lab-grown diamond centre stone, front view.

LULU
Elongated Cushion Blue Lab Diamond 950 Platinum Petite Solitaire Ring

From 22 304,00 SEK

Margot bezel-set solitaire engagement ring with an emerald-cut blue lab-grown diamond centre stone, front view.

MARGOT
Emerald Blue Lab Diamond Platinum Bezel Solitaire

From 23 738,00 SEK

Hidden Halo

PARIS
Radiant Blue Lab Diamond 950 Platinum Hidden Halo Solitaire

From 21 709,00 SEK

Lulu petite solitaire engagement ring with a marquise blue lab-grown diamond centre stone, front view.

LULU
Marquise Blue Lab Diamond 950 Platinum Petite Solitaire

From 19 978,00 SEK

Viola diamond shoulder-set engagement ring with a round blue lab-grown diamond centre stone, front view.

VIOLA
Round Blue Lab Diamond 950 Platinum Shoulder Set

From 26 551,00 SEK

Margot bezel-set solitaire engagement ring with a round blue lab-grown diamond centre stone, front view.

MARGOT
Round Blue Lab Diamond 950 Platinum Bezel Solitaire Ring

From 23 846,00 SEK

Allure scatter-set engagement ring with an oval blue lab-grown diamond centre stone, front view.

ALLURE
Oval Blue Lab Diamond Platinum Scatter Ring

From 32 448,00 SEK

Allure scatter-set engagement ring with a round blue lab-grown diamond centre stone, front view.

ALLURE
Round Blue Lab Diamond Platinum 950 Scatter Ring

From 29 932,00 SEK

Alya starburst cluster engagement ring with an oval blue lab-grown diamond centre stone, front view.

ALYA
Oval Blue Lab Diamond 950 Platinum Starburst Cluster Shoulder Set Engagement Ring

From 32 448,00 SEK

Hidden Halo

PARIS
Oval Blue Lab Diamond 950 Platinum Hidden Halo

From 24 333,00 SEK

Viola diamond shoulder-set engagement ring with an elongated cushion blue lab-grown diamond centre stone, front view.

VIOLA
Elongated Cushion Blue Lab Diamond 950 Platinum Shoulder Set

From 29 067,00 SEK

Amelia halo engagement ring with a round blue lab-grown diamond centre stone, front view.

AMELIA
Round Blue Lab Diamond Platinum 950 Halo Ring

From 32 637,00 SEK

Annora twist solitaire engagement ring with a round blue lab-grown diamond centre stone, front view.

ANNORA
Round Blue Lab Diamond 950 Platinum Twist Solitaire Ring

From 23 846,00 SEK

Belle diamond shoulder-set engagement ring with a round blue lab-grown diamond centre stone, front view.

BELLE
Round Blue Lab Diamond Platinum 950 Shoulder Set Ring

From 57 659,00 SEK

Blossom trilogy engagement ring with a round blue lab-grown diamond centre stone and colourless pear-shaped side diamonds, front view.

BLOSSOM
Round Blue Lab Diamond & Pear Lab Diamond 950 Platinum Trilogy Ring

From 29 932,00 SEK

Blush petite halo engagement ring with a round blue lab-grown diamond centre stone, front view.

BLUSH
Round Blue Lab Diamond 950 Platinum Petite Halo Ring

From 29 932,00 SEK

Caseada halo engagement ring with a cushion blue lab-grown diamond centre stone, front view.

CASEADA
Cushion Blue Lab Diamond Platinum 950 Halo Ring

From 32 637,00 SEK

Choosing lab grown blue diamond engagement rings

Judge the blue you will wear

Look at the selected diamond in neutral light and in movement. Assess the depth and evenness of colour alongside its outline and dimensions. A collection photograph introduces the palette; it should not replace viewing information for the particular centre you choose.

Check colour and growth disclosure

A laboratory-grown diamond can acquire colour during growth or through later treatment. Read the selected stone’s report for the information provided, including the issuer, date and relevant comments. Do not assume that a famous mined blue diamond describes the origin or specification of your lab grown stone.

Balance colour with the mounting

Platinum and white gold give a blue centre a cool frame, while warmer gold creates contrast. Compare the visible border of a halo with the quieter outline of a solitaire. Look at the whole head width and basket, particularly if you want a wedding band to sit alongside it.

Designs to compare

ISABELLA - Oval Blue Lab Diamond 950 Platinum Solitaire

The centre leads the design. Compare its dimensions, claw arrangement and basket above the band.

View this design

EDEN - Round Blue Lab Diamond 950 Platinum Vine Solitaire Ring

The centre leads the design. Compare its dimensions, claw arrangement and basket above the band.

View this design

A question worth asking

Is a blue lab diamond the same material as blue sapphire?

No. The centre in this collection is laboratory-grown diamond. Blue sapphire is a separate gemstone range with different optical character and buying considerations.

2026 Award Nominations

Award Winning Jeweller

We’re proud to be recognised consistently by the UK jewellery industry’s leading awards programmes. In 2026, Lily Arkwright has been shortlisted for Branded Boutique of the Year at the Professional Jeweller Awards and Bridal Jewellery Retailer of the Year at the UK Jewellery Awards, reflecting our continued commitment to exceptional customer service, product innovation, and ethical craftsmanship.

These latest nominations build on previous industry recognition, including being shortlisted for Bridal Jewellery Retailer of the Year at the 2025 UK Jewellery Awards and Independent Retailer of the Year at the Professional Jeweller Awards 2025. We were also finalists for Retail Team of the Year at both the Retail Jeweller Awards and Professional Jeweller Awards in 2024, recognising the passion, expertise, and dedication of our team.

We’re honoured to be recognised for helping thousands of couples find the perfect engagement rings and wedding rings, with a strong focus on choice, transparency, and personalisation. As an award-winning jeweller, we remain committed to delivering exceptional service, exceptional craftsmanship, and responsibly sourced lab-grown diamonds, moissanite, and natural diamonds, ensuring every customer can find a ring that perfectly reflects their love story.