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Blue lab-grown diamonds

Browse our loose lab-grown blue diamonds, each with an IGI grading report. Most are Fancy Vivid Blue, the most intense grade, in a range of shapes and sizes, with cushion cuts the most popular.

What the badges mean
  • Juvetti pickOur shortlist for each shape and size: Cut for sparkle plus Looks bigger or Most for your money, with an IGI or GIA report and a 360° video.
  • Cut for sparkleDepth, table and length-to-width ratio in the range that returns the most light for its shape, with Excellent polish and symmetry. Rounds must also be Ideal cut or hearts and arrows.
  • Looks biggerMeasured face-up (length × width) against its carat weight: larger across the top than most stones of the same shape and size.
  • Most for your moneyPrice per carat compared with stones of the same shape and size: this one sits in the cheapest quarter.

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220 products

1.03ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS21.03ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
1.03 Carat Cushion Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 7,176
1.03ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VVS21.03ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
1.03 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 7,176
1.02ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS21.02ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS2 – 360° view
1.02 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VS2, IGI Sale priceDhs. 7,065
1.02ct Cushion lab-grown diamond, Fancy Vivid Blue, VS11.02ct Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1.02 Carat Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 7,065
1.02ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VVS21.02ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
1.02 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 7,065
1.02ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS21.02ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
1.02 Carat Cushion Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 7,065
1.02ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS21.02ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
1.02 Carat Cushion Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 7,065
1.01ct Cushion lab-grown diamond, Fancy Vivid Blue, SI11.01ct Cushion lab-grown diamond, Fancy Vivid Blue, SI1 – 360° view
1.01 Carat Cushion Lab Diamond, Fancy Vivid Blue, SI1, IGI Sale priceDhs. 7,010
1.01ct Cushion lab-grown diamond, Fancy Vivid Blue, VS21.01ct Cushion lab-grown diamond, Fancy Vivid Blue, VS2 – 360° view
1.01 Carat Cushion Lab Diamond, Fancy Vivid Blue, VS2, IGI Sale priceDhs. 7,010
1.01ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS11.01ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1.01 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 7,010
1.01ct Cushion lab-grown diamond, Fancy Vivid Blue, VS11.01ct Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1.01 Carat Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 7,010
1.01ct Cushion lab-grown diamond, Fancy Vivid Blue, VS11.01ct Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1.01 Carat Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 7,010
1.01ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS21.01ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
1.01 Carat Cushion Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 7,010
1ct Cushion lab-grown diamond, Fancy Vivid Blue, VS21ct Cushion lab-grown diamond, Fancy Vivid Blue, VS2 – 360° view
1 Carat Cushion Lab Diamond, Fancy Vivid Blue, VS2, IGI Sale priceDhs. 9,052
1ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS11ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 6,955
1ct Cushion lab-grown diamond, Fancy Vivid Blue, VS11ct Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1 Carat Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 6,955
1ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS11ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 6,955
1ct Cushion lab-grown diamond, Fancy Vivid Blue, VS11ct Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1 Carat Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 6,955
1ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS11ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 6,955
1ct Cushion lab-grown diamond, Fancy Vivid Blue, VS11ct Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1 Carat Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 9,052
0.99ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS20.99ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
0.99 Carat Cushion Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 6,900
0.9ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS20.9ct Cushion lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
0.9 Carat Cushion Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 6,348
0.81ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VVS20.81ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
0.81 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 7,396
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1.59 Carat Radiant Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 11,315
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1.59 Carat Radiant Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,315
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1.58 Carat Radiant Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,260
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1.58 Carat Radiant Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,260
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1.58 Carat Radiant Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 11,260
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1.58 Carat Radiant Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,260
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1.57 Carat Radiant Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,149
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1.57 Carat Radiant Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,149
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1.57 Carat Radiant Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,149
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1.56 Carat Radiant Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,094
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1.56 Carat Radiant Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,094
1.54ct Radiant lab-grown diamond, Fancy Vivid Blue, VVS21.54ct Radiant lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
1.54 Carat Radiant Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale priceDhs. 11,315
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1.52 Carat Radiant Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 10,818
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1.5 Carat Radiant Lab Diamond, Fancy Vivid Blue, VS2, IGI Sale priceDhs. 10,708
3.09ct Pear lab-grown diamond, Fancy Intense Blue, VS13.09ct Pear lab-grown diamond, Fancy Intense Blue, VS1 – 360° view
3.09 Carat Pear Lab Diamond, Fancy Intense Blue, VS1, IGI Sale priceDhs. 18,269
3.02ct Pear lab-grown diamond, Fancy Vivid Blue, VS23.02ct Pear lab-grown diamond, Fancy Vivid Blue, VS2 – 360° view
3.02 Carat Pear Lab Diamond, Fancy Vivid Blue, VS2, IGI Sale priceDhs. 17,828
1.59ct Pear lab-grown diamond, Fancy Vivid Blue, VS11.59ct Pear lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1.59 Carat Pear Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,315
1.59ct Pear lab-grown diamond, Fancy Vivid Blue, VS11.59ct Pear lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1.59 Carat Pear Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,315
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1.57 Carat Pear Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,149
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1.56 Carat Pear Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,094
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1.55 Carat Pear Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,039
1.55ct Pear lab-grown diamond, Fancy Vivid Blue, VS11.55ct Pear lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1.55 Carat Pear Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 11,039
1.54ct Pear lab-grown diamond, Fancy Vivid Blue, VS11.54ct Pear lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1.54 Carat Pear Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 10,984
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1.53 Carat Pear Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 10,873
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1.53 Carat Pear Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale priceDhs. 10,873

How to choose a blue lab-grown diamond

Colour intensity. Blue diamonds are graded from Fancy Light Blue through Fancy and Fancy Intense to Fancy Vivid Blue, the deepest, most saturated ocean blue. The more intense the colour, the rarer the stone in nature.

Shape. Cushion and radiant cuts deepen and intensify blue colour, while oval and pear shapes give an elegant, elongated look that appears larger for its carat weight.

Clarity and certification. Almost all of our blue diamonds are VS clarity or higher, and every one comes with an independent IGI report confirming its carat weight, colour, clarity and measurements.

Blue lab-grown diamond FAQs

Are lab-grown blue diamonds real diamonds?

Yes. Lab-grown blue diamonds are real diamonds with the same chemical, physical and optical properties as mined blue diamonds, grown in a laboratory instead of being mined.

How much does a blue diamond cost?

Natural blue diamonds can cost hundreds of thousands of pounds per carat. Our loose lab-grown blue diamonds start from £410, with price rising with carat weight and colour; Fancy Vivid Blue stones around 3 carats are under £6,000.

Is a blue diamond a good choice for an engagement ring?

Yes. A blue lab-grown diamond is as hard and durable as any diamond, so it is a striking alternative to a sapphire for engagement rings and everyday wear.

Explore more coloured lab-grown diamonds: pink diamonds, yellow diamonds, champagne diamonds, green diamonds or our full range of loose lab-grown diamonds.

Frequently asked questions

Can I see these diamonds in your London store?

Our London store displays finished jewellery and a smaller selection of gemstones. Our loose diamonds are held at our workshop, so they are not on display in store.

How to choose a blue lab-grown diamond

Colour intensity

Blue diamonds are graded from Fancy Light Blue through Fancy and Fancy Intense to Fancy Vivid Blue, the deepest, most saturated ocean blue. The more intense the colour, the rarer the stone in nature.

Shape

Cushion and radiant cuts deepen and intensify blue colour, while oval and pear shapes give an elegant, elongated look that appears larger for its carat weight.

Clarity and grading reports

Almost all of our blue diamonds are VS clarity or higher, and every one comes with an independent IGI report confirming its carat weight, colour, clarity and measurements.

Are lab-grown blue diamonds real diamonds?

Yes. They are real diamonds with the same chemical, physical and optical properties as mined blue diamonds, grown in a laboratory instead of being mined.

How much does a blue diamond cost?

Natural blue diamonds can cost hundreds of thousands of pounds per carat. Lab-grown blue diamonds cost a small fraction of that, with price rising with carat weight and colour intensity; each stone’s price is on its card.

Is a blue diamond a good choice for an engagement ring?

Yes. A blue lab-grown diamond is as hard and durable as any diamond, so it is a striking alternative to a sapphire for engagement rings and everyday wear.

Can I see these diamonds in your London store?

Our London store displays finished jewellery and a smaller selection of gemstones. Our loose diamonds are held at our workshop, so they are not on display in store.

More coloured lab-grown diamonds: pink, yellow, champagne, green, or see all loose lab-grown diamonds.