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The Fiorella oval blue lab-grown diamond engagement ring in yellow gold.

Blue & Green Lab-Grown Diamond Rings

Blue. And every bit a diamond.

Real blue lab-grown diamonds, chosen for your ring and shown to you before we set it.

Natural blue diamonds are some of the rarest gems on earth, priced for museums. Grown in a lab, a blue diamond is still a real diamond, with the same color and fire, for a small part of the price. Almost nobody else will be wearing one.

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18 products

The Juliana Hope blue cushion moissanite ring in yellow gold, isolated product view
The Juliana Hope Cushion-Cut Lab-Grown Diamond Ring Sale priceFrom £2,302.95
Amelia Claire ring in yellow-gold finish, front view: oval blue center stone in four claw prongs, framed by a compass cluster of clear round accents and two blue pear accents.
The Amelia Claire Oval-Cut Lab-Grown Diamond Ring Sale priceFrom £2,226.95
The Dariana oval moissanite solitaire ring in solid gold.
The Dariana Oval-Cut Lab-Grown Diamond Ring Sale priceFrom £1,688.95
Rose gold ring with a blue gemstone and diamond accents on a light background
The Sapphire Vista Princess-Cut Lab-Grown Diamond Ring Sale priceFrom £2,763.95
Front close-up of a rose gold-tone ring with an emerald-cut blue center stone and halo accents on blue fabric.
The Caterina Emerald-Cut Lab-Grown Diamond Ring Sale priceFrom £1,688.95
Rose-gold-toned ring with a radiant-cut blue moissanite and pale accent stones on a green leaf
The Katalina Radiant-Cut Lab-Grown Diamond Ring Sale priceFrom £1,919.95
The Fiorella blue oval cluster moissanite ring in rose gold, isolated product view
The Fiorella Oval-Cut Lab-Grown Diamond Ring Sale priceFrom £2,226.95
Rose-gold ring with a round blue center stone, clear accent gems, and sculpted leaf motifs resting on a surface.
The Elowen Round-Cut Lab-Grown Diamond Ring Sale priceFrom £1,611.95
The Bethany - Vintage Round-Cut Lab-Grown Diamond Ring
The Bethany - Vintage Round-Cut Lab-Grown Diamond Ring Sale priceFrom £1,919.95
The Noelle blue moissanite halo ring in rose gold, isolated front view
The Noelle Round-Cut Lab-Grown Diamond Ring Sale priceFrom £2,149.95
The Carlotta 2 carat oval blue moissanite ring in solid gold, with a halo of clear stones, displayed on gray velvet.
The Carlotta Oval-Cut Lab-Grown Diamond Ring Sale priceFrom £2,226.95
The Bethany radiant cut blue moissanite halo ring in solid gold
The Bethany Radiant-Cut Lab-Grown Diamond Ring Sale priceFrom £2,763.95
Gold-tone Natalia ring with a pale blue emerald-cut center stone and round accent stones on a reflective white surface.
The Natalia Emerald-Cut Lab-Grown Diamond Ring Sale priceFrom £1,688.95
Priscilla ring in yellow-gold finish, front view: blue emerald-cut center stone in four rounded corner claws, a trio of clear round accents on each side, and wave-swept shoulders.
The Priscilla Emerald-Cut Lab-Grown Diamond Ring Sale priceFrom £1,688.95
The Bethany Marquise Cut blue moissanite ring in solid gold
The Bethany Marquise-Cut Lab-Grown Diamond Ring Sale priceFrom £2,226.95
Close-up view of The Katalina solid gold ring with its blue moissanite center.
The Katalina Round-Cut Lab-Grown Diamond Ring Sale priceFrom £1,919.95
The Bethany 1.5 carat blue moissanite halo ring in solid gold.
The Bethany Round-Cut Lab-Grown Diamond Ring Sale priceFrom £1,919.95
The Althea 1CT round-cut moissanite ring in solid gold with delicate side stones
The Althea Round-Cut Lab-Grown Diamond Ring Sale priceFrom £1,611.95

The rarest color in diamonds, within reach

Every design here opens on a blue diamond (and one on green), the way buyers fell in love with it. Each colored diamond is one of a kind, so we choose yours and show it to you before it is set.

Want the same design in white? Choose a white diamond on the product page and the price comes down. Prefer pink? See pink lab-grown diamonds. All rings: lab-grown diamond rings.

Frequently Asked Questions

Is a blue lab-grown diamond a real diamond?

Yes. It is diamond, with diamond's hardness and fire. Yours just happens to be blue.

Will I see my diamond before it is set?

Yes. Every colored diamond is one of a kind, so we send you a video of your actual stone and set it only after you approve.

Can I have a white diamond in the same design?

Yes. Choose White on the product page and the price updates, lower than blue.