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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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2315 products

1.53ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VVS21.53ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
1.53 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale price£1,970.00
1.51ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS11.51ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1.51 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale price£1,950.00
1.5ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS11.5ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1.5 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale price£1,940.00
1.48ct Elongated Cushion lab-grown diamond, E VS11.48ct Elongated Cushion lab-grown diamond, E VS1 – 360° view
1.48 Carat Elongated Cushion Lab Diamond, E VS1, IGI Sale price£560.00
1.03ct Elongated Cushion lab-grown diamond, Fancy Vivid Orangy Yellow, VVS11.03ct Elongated Cushion lab-grown diamond, Fancy Vivid Orangy Yellow, VVS1 – 360° view
1.03 Carat Elongated Cushion Lab Diamond, Fancy Vivid Orangy Yellow, VVS1, IGI Sale price£1,300.00
0.75ct Elongated Cushion lab-grown diamond, D VVS20.75ct Elongated Cushion lab-grown diamond, D VVS2 – 360° view
0.75 Carat Elongated Cushion Lab Diamond, D VVS2, IGI Sale price£360.00
0.74ct Cushion lab-grown diamond, Fancy Pink, VS10.74ct Cushion lab-grown diamond, Fancy Pink, VS1 – 360° view
0.74 Carat Cushion Lab Diamond, Fancy Pink, VS1, IGI Sale price£1,010.00
6.74ct Cushion Rose Cut lab-grown diamond, G VVS26.74ct Cushion Rose lab-grown diamond, G VVS2 – 360° view
6.74 Carat Cushion Rose Cut Lab Diamond, G VVS2, IGI Sale price£3,080.00
1.5ct Bird lab-grown diamond, E VS11.5ct Bird lab-grown diamond, E VS1 – 360° view
1.5 Carat Bird Lab Diamond, E VS1, IGI Sale price£1,220.00
1.26ct Butterfly lab-grown diamond, F VS11.26ct Butterfly lab-grown diamond, F VS1 – 360° view
1.26 Carat Butterfly Lab Diamond, F VS1, IGI Sale price£1,040.00
1.05ct Triangle lab-grown diamond, E VS21.05ct Triangle lab-grown diamond, E VS2 – 360° view
1.05 Carat Triangle Lab Diamond, E VS2, IGI Sale price£390.00
4.72ct Square Emerald lab-grown diamond, E VS14.72ct Square Emerald lab-grown diamond, E VS1 – 360° view
4.72 Carat Square Emerald Lab Diamond, E VS1, GIA Sale price£2,000.00
4.56ct Square Emerald lab-grown diamond, F VS14.56ct Square Emerald lab-grown diamond, F VS1 – 360° view
4.56 Carat Square Emerald Lab Diamond, F VS1, GIA Sale price£1,930.00
4.57ct Square Emerald lab-grown diamond, F VS14.57ct Square Emerald lab-grown diamond, F VS1 – 360° view
4.57 Carat Square Emerald Lab Diamond, F VS1, GIA Sale price£1,940.00
3.8ct Square Emerald lab-grown diamond, F VS23.8ct Square Emerald lab-grown diamond, F VS2 – 360° view
3.8 Carat Square Emerald Lab Diamond, F VS2, GIA Sale price£1,200.00
3.69ct Square Emerald lab-grown diamond, E VS13.69ct Square Emerald lab-grown diamond, E VS1 – 360° view
3.69 Carat Square Emerald Lab Diamond, E VS1, GIA Sale price£1,190.00
3.53ct Square Emerald lab-grown diamond, F VS13.53ct Square Emerald lab-grown diamond, F VS1 – 360° view
3.53 Carat Square Emerald Lab Diamond, F VS1, GIA Sale price£1,140.00
2.79ct Square Emerald lab-grown diamond, E VS22.79ct Square Emerald lab-grown diamond, E VS2 – 360° view
2.79 Carat Square Emerald Lab Diamond, E VS2, GIA Sale price£910.00
2.76ct Square Emerald lab-grown diamond, E VS12.76ct Square Emerald lab-grown diamond, E VS1 – 360° view
2.76 Carat Square Emerald Lab Diamond, E VS1, GIA Sale price£920.00
1.71ct Square Emerald lab-grown diamond, E VS11.71ct Square Emerald lab-grown diamond, E VS1 – 360° view
1.71 Carat Square Emerald Lab Diamond, E VS1, IGI Sale price£600.00
4.56ct Round lab-grown diamond, E VS24.56ct Round lab-grown diamond, E VS2 – 360° view
4.56 Carat Round Lab Diamond, E VS2, Excellent Cut, GIA Sale price£1,870.00
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3.73 Carat Round Lab Diamond, E VS2, Excellent Cut, GIA Sale price£1,090.00
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3.47 Carat Round Lab Diamond, E VS2, Excellent Cut, GIA Sale price£1,020.00
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3.37 Carat Round Lab Diamond, F VS2, Excellent Cut, GIA Sale price£1,000.00
3.22ct Round lab-grown diamond, E VS23.22ct Round lab-grown diamond, E VS2 – 360° view
3.22 Carat Round Lab Diamond, E VS2, Excellent Cut, GIA Sale price£960.00
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2.71 Carat Round Lab Diamond, E VS2, Excellent Cut, GIA Sale price£820.00
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2.59 Carat Round Lab Diamond, E VS2, Excellent Cut, GIA Sale price£790.00
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2.59 Carat Round Lab Diamond, D VS2, Excellent Cut, GIA Sale price£850.00
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2.59 Carat Round Lab Diamond, F VS1, Excellent Cut, GIA Sale price£810.00
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2.53 Carat Round Lab Diamond, D VS2, Excellent Cut, GIA Sale price£830.00
3.74ct Radiant lab-grown diamond, E VS23.74ct Radiant lab-grown diamond, E VS2 – 360° view
3.74 Carat Radiant Lab Diamond, E VS2, GIA Sale price£1,180.00
1.95ct Radiant lab-grown diamond, E VS21.95ct Radiant lab-grown diamond, E VS2 – 360° view
1.95 Carat Radiant Lab Diamond, E VS2, IGI Sale price£660.00
1.31ct Radiant lab-grown diamond, E VS11.31ct Radiant lab-grown diamond, E VS1 – 360° view
1.31 Carat Radiant Lab Diamond, E VS1, IGI Sale price£470.00
1.15ct Radiant lab-grown diamond, E VVS11.15ct Radiant lab-grown diamond, E VVS1 – 360° view
1.15 Carat Radiant Lab Diamond, E VVS1, IGI Sale price£440.00
1.08ct Radiant lab-grown diamond, Fancy Vivid Yellow, VS11.08ct Radiant lab-grown diamond, Fancy Vivid Yellow, VS1 – 360° view
1.08 Carat Radiant Lab Diamond, Fancy Vivid Yellow, VS1, IGI Sale price£1,470.00
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4.47 Carat Princess Lab Diamond, D VS2, GIA Sale price£1,900.00
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3.7 Carat Princess Lab Diamond, E VS2, GIA Sale price£1,170.00
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3.79 Carat Princess Lab Diamond, E VS2, GIA Sale price£1,200.00
3.58ct Princess lab-grown diamond, F VS23.58ct Princess lab-grown diamond, F VS2 – 360° view
3.58 Carat Princess Lab Diamond, F VS2, GIA Sale price£1,140.00
3.56ct Princess lab-grown diamond, F VS13.56ct Princess lab-grown diamond, F VS1 – 360° view
3.56 Carat Princess Lab Diamond, F VS1, GIA Sale price£1,150.00
3.52ct Princess lab-grown diamond, F VS13.52ct Princess lab-grown diamond, F VS1 – 360° view
3.52 Carat Princess Lab Diamond, F VS1, GIA Sale price£1,140.00
3.56ct Princess lab-grown diamond, F VS13.56ct Princess lab-grown diamond, F VS1 – 360° view
3.56 Carat Princess Lab Diamond, F VS1, GIA Sale price£1,150.00
3.47ct Princess lab-grown diamond, D VS13.47ct Princess lab-grown diamond, D VS1 – 360° view
3.47 Carat Princess Lab Diamond, D VS1, GIA Sale price£1,250.00
3.42ct Princess lab-grown diamond, E VS13.42ct Princess lab-grown diamond, E VS1 – 360° view
3.42 Carat Princess Lab Diamond, E VS1, GIA Sale price£1,110.00
2.84ct Princess lab-grown diamond, F VS22.84ct Princess lab-grown diamond, F VS2 – 360° view
2.84 Carat Princess Lab Diamond, F VS2, GIA Sale price£920.00
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3.15 Carat Princess Lab Diamond, F VS1, GIA Sale price£1,030.00
2.75ct Princess lab-grown diamond, E VS22.75ct Princess lab-grown diamond, E VS2 – 360° view
2.75 Carat Princess Lab Diamond, E VS2, GIA Sale price£900.00
2.79ct Princess lab-grown diamond, E VS22.79ct Princess lab-grown diamond, E VS2 – 360° view
2.79 Carat Princess Lab Diamond, E VS2, GIA Sale price£910.00

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.