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Loose Lab-Grown Diamonds

Choose from thousands of loose lab-grown diamonds, created with 100% solar energy. Every shape, from round brilliant and oval to pear, emerald, cushion, radiant, marquise, princess and heart, in colourless D to J grades and rare fancy colours, from under half a carat to over 5 carats, priced from £220. Use the filters to narrow down by shape, carat, colour, clarity and price.

Shop by carat: under 1 carat, 1 carat, 1.5 carat, 2 carat or 3 carat and above.

Read our buying guide below ↓

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2351 products

8.51ct Radiant lab-grown diamond, F VS28.51ct Radiant lab-grown diamond, F VS2 – 360° view
8.51 Carat Radiant Lab Diamond, F VS2, GIA Sale price£4,450.00
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14.47 Carat Princess Lab Diamond, E VS1, IGI Sale price£5,830.00
13.1ct Oval lab-grown diamond, F SI113.1ct Oval lab-grown diamond, F SI1 – 360° view
13.1 Carat Oval Lab Diamond, F SI1, IGI Sale price£3,370.00
7.15ct Emerald lab-grown diamond, F VS27.15ct Emerald lab-grown diamond, F VS2 – 360° view
7.15 Carat Emerald Lab Diamond, F VS2, GIA Sale price£3,710.00
16.02ct Elongated Cushion lab-grown diamond, F VS216.02ct Elongated Cushion lab-grown diamond, F VS2 – 360° view
16.02 Carat Elongated Cushion Lab Diamond, F VS2, IGI Sale price£3,800.00
14.58ct Elongated Cushion lab-grown diamond, H VS214.58ct Elongated Cushion lab-grown diamond, H VS2 – 360° view
14.58 Carat Elongated Cushion Lab Diamond, H VS2, IGI Sale price£3,170.00
1.55ct Turtle lab-grown diamond, E VVS21.55ct Turtle lab-grown diamond, E VVS2 – 360° view
1.55 Carat Turtle Lab Diamond, E VVS2, IGI Sale price£1,260.00
1.75ct Turtle lab-grown diamond, E VVS21.75ct Turtle lab-grown diamond, E VVS2 – 360° view
1.75 Carat Turtle Lab Diamond, E VVS2, IGI Sale price£1,410.00
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1.34 Carat Teddy Bear Lab Diamond, E VS2, IGI Sale price£1,100.00
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1.33 Carat Teddy Bear Lab Diamond, E VVS2, IGI Sale price£1,100.00
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5.06 Carat Square Emerald Lab Diamond, F VS1, GIA Sale price£1,580.00
3.82ct Square Emerald lab-grown diamond, E VS13.82ct Square Emerald lab-grown diamond, E VS1 – 360° view
3.82 Carat Square Emerald Lab Diamond, E VS1, IGI Sale price£1,230.00
3.8ct Square Emerald lab-grown diamond, F VS13.8ct Square Emerald lab-grown diamond, F VS1 – 360° view
3.8 Carat Square Emerald Lab Diamond, F VS1, GIA Sale price£1,220.00
3.79ct Square Emerald lab-grown diamond, E VS13.79ct Square Emerald lab-grown diamond, E VS1 – 360° view
3.79 Carat Square Emerald Lab Diamond, E VS1, GIA Sale price£1,220.00
3.76ct Square Emerald lab-grown diamond, E VS23.76ct Square Emerald lab-grown diamond, E VS2 – 360° view
3.76 Carat Square Emerald Lab Diamond, E VS2, GIA Sale price£1,190.00
3.73ct Square Emerald lab-grown diamond, F VS13.73ct Square Emerald lab-grown diamond, F VS1 – 360° view
3.73 Carat Square Emerald Lab Diamond, F VS1, GIA Sale price£1,200.00
3.73ct Square Emerald lab-grown diamond, F VVS23.73ct Square Emerald lab-grown diamond, F VVS2 – 360° view
3.73 Carat Square Emerald Lab Diamond, F VVS2, IGI Sale price£1,250.00
3.72ct Square Emerald lab-grown diamond, E VS13.72ct Square Emerald lab-grown diamond, E VS1 – 360° view
3.72 Carat Square Emerald Lab Diamond, E VS1, GIA Sale price£1,200.00
3.71ct Square Emerald lab-grown diamond, F VS23.71ct Square Emerald lab-grown diamond, F VS2 – 360° view
3.71 Carat Square Emerald Lab Diamond, F VS2, GIA Sale price£1,170.00
3.6ct Square Emerald lab-grown diamond, D VS13.6ct Square Emerald lab-grown diamond, D VS1 – 360° view
3.6 Carat Square Emerald Lab Diamond, D VS1, IGI Sale price£1,260.00
3.59ct Square Emerald lab-grown diamond, F VS13.59ct Square Emerald lab-grown diamond, F VS1 – 360° view
3.59 Carat Square Emerald Lab Diamond, F VS1, GIA Sale price£1,160.00
3.58ct Square Emerald lab-grown diamond, F VS23.58ct Square Emerald lab-grown diamond, F VS2 – 360° view
3.58 Carat Square Emerald Lab Diamond, F VS2, GIA Sale price£1,140.00
3.51ct Square Emerald lab-grown diamond, E VS23.51ct Square Emerald lab-grown diamond, E VS2 – 360° view
3.51 Carat Square Emerald Lab Diamond, E VS2, GIA Sale price£1,120.00
3.39ct Square Emerald lab-grown diamond, E VS23.39ct Square Emerald lab-grown diamond, E VS2 – 360° view
3.39 Carat Square Emerald Lab Diamond, E VS2, IGI Sale price£1,080.00
3.24ct Square Emerald lab-grown diamond, F VS13.24ct Square Emerald lab-grown diamond, F VS1 – 360° view
3.24 Carat Square Emerald Lab Diamond, F VS1, GIA Sale price£1,060.00
3.19ct Square Emerald lab-grown diamond, F VS13.19ct Square Emerald lab-grown diamond, F VS1 – 360° view
3.19 Carat Square Emerald Lab Diamond, F VS1, GIA Sale price£1,040.00
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2.78 Carat Square Emerald Lab Diamond, E VS1, IGI Sale price£920.00
2.88ct Square Emerald lab-grown diamond, E VS12.88ct Square Emerald lab-grown diamond, E VS1 – 360° view
2.88 Carat Square Emerald Lab Diamond, E VS1, IGI Sale price£950.00
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2.77 Carat Square Emerald Lab Diamond, E VS1, GIA Sale price£920.00
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2.71 Carat Square Emerald Lab Diamond, E VS1, GIA Sale price£900.00
2.32ct Square Emerald lab-grown diamond, F VS12.32ct Square Emerald lab-grown diamond, F VS1 – 360° view
2.32 Carat Square Emerald Lab Diamond, F VS1, GIA Sale price£780.00
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1.59 Carat Square Emerald Lab Diamond, D VS2, IGI Sale price£590.00
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1.43 Carat Square Emerald Lab Diamond, E VVS2, IGI Sale price£530.00
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1.46 Carat Square Emerald Lab Diamond, E VS1, IGI Sale price£520.00
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1.39 Carat Square Emerald Lab Diamond, D VVS2, IGI Sale price£560.00
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1.41 Carat Square Emerald Lab Diamond, D VS1, IGI Sale price£540.00
1.13ct Square Emerald lab-grown diamond, D VVS21.13ct Square Emerald lab-grown diamond, D VVS2 – 360° view
1.13 Carat Square Emerald Lab Diamond, D VVS2, IGI Sale price£460.00
4.56ct Round lab-grown diamond, F VS24.56ct Round lab-grown diamond, F VS2 – 360° view
4.56 Carat Round Lab Diamond, F VS2, Excellent Cut, GIA Sale price£1,870.00
4.37ct Round lab-grown diamond, F VS24.37ct Round lab-grown diamond, F VS2 – 360° view
4.37 Carat Round Lab Diamond, F VS2, Excellent Cut, GIA Sale price£1,860.00
4.1ct Round lab-grown diamond, E VVS24.1ct Round lab-grown diamond, E VVS2 – 360° view
4.1 Carat Round Lab Diamond, E VVS2, Ideal Cut, IGI Sale price£1,260.00
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3.87 Carat Round Lab Diamond, E VS1, Ideal Cut, IGI Sale price£1,150.00
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3.75 Carat Round Lab Diamond, F VS2, Excellent Cut, GIA Sale price£1,090.00
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3.72 Carat Round Lab Diamond, E VS2, Excellent Cut, GIA Sale price£1,090.00
3.7ct Round lab-grown diamond, E VS13.7ct Round lab-grown diamond, E VS1 – 360° view
3.7 Carat Round Lab Diamond, E VS1, Ideal Cut, IGI Sale price£1,100.00
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3.49 Carat Round Lab Diamond, E VS2, Excellent Cut, GIA Sale price£1,030.00
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3.49 Carat Round Lab Diamond, F VS1, Excellent Cut, GIA Sale price£1,050.00
3.41ct Round lab-grown diamond, E VS23.41ct Round lab-grown diamond, E VS2 – 360° view
3.41 Carat Round Lab Diamond, E VS2, Excellent Cut, GIA Sale price£1,010.00
3.43ct Round lab-grown diamond, E VS23.43ct Round lab-grown diamond, E VS2 – 360° view
3.43 Carat Round Lab Diamond, E VS2, Excellent Cut, GIA Sale price£1,010.00

How to choose a loose lab-grown diamond

Colour. D, E and F are colourless, the whitest grades; G to J are near-colourless and look white once set, offering excellent value. Read more in our guides to D colour and F colour lab diamonds. For something different, explore our pink, blue, yellow, champagne and green lab-grown diamonds.

Clarity. Most of our diamonds are VS1 or VS2, which are eye-clean, with a selection of VVS1 and VVS2 stones for those who want near-flawless clarity. See our F VS2 guide and VVS1 guide.

Cut and shape. Round brilliants offer the most sparkle; oval, pear and marquise shapes look larger for their carat weight; emerald cuts have an elegant step-cut look; cushion, radiant and princess cuts combine brilliance with a squarer outline.

Certification. The vast majority of our loose diamonds come with an independent IGI or GIA grading report confirming carat, colour, clarity and measurements; look for IGI or GIA in the product title. Learn more in lab-grown diamond certifications explained.

Are lab-grown diamonds real diamonds?

Yes. Lab-grown diamonds are chemically, physically and optically identical to mined diamonds. They are grown in a laboratory rather than mined, which makes them more affordable and more sustainable.

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.