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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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2326 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
1.45ct Elongated Cushion lab-grown diamond, E VVS21.45ct Elongated Cushion lab-grown diamond, E VVS2 – 360° view
1.45 Carat Elongated Cushion Lab Diamond, E VVS2, IGI Sale price£570.00
1.35ct Elongated Cushion lab-grown diamond, E VS11.35ct Elongated Cushion lab-grown diamond, E VS1 – 360° view
1.35 Carat Elongated Cushion Lab Diamond, E VS1, IGI Sale price£520.00
1.24ct Elongated Cushion lab-grown diamond, Fancy Intense Yellow, VS21.24ct Elongated Cushion lab-grown diamond, Fancy Intense Yellow, VS2 – 360° view
1.24 Carat Elongated Cushion Lab Diamond, Fancy Intense Yellow, VS2, IGI Sale price£1,450.00
1.06ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VVS21.06ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VVS2 – 360° view
1.06 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VVS2, IGI Sale price£1,330.00
1.02ct Elongated Cushion lab-grown diamond, Fancy Vivid Yellow, VVS21.02ct Elongated Cushion lab-grown diamond, Fancy Vivid Yellow, VVS2 – 360° view
1.02 Carat Elongated Cushion Lab Diamond, Fancy Vivid Yellow, VVS2, IGI Sale price£1,280.00
0.98ct Elongated Cushion lab-grown diamond, D VVS20.98ct Elongated Cushion lab-grown diamond, D VVS2 – 360° view
0.98 Carat Elongated Cushion Lab Diamond, D VVS2, IGI Sale price£450.00
3.83ct Cushion lab-grown diamond, Fancy Intense Yellow, VS13.83ct Cushion lab-grown diamond, Fancy Intense Yellow, VS1 – 360° view
3.83 Carat Cushion Lab Diamond, Fancy Intense Yellow, VS1, IGI Sale price£3,710.00
9.42ct Oval lab-grown diamond, E VS29.42ct Oval lab-grown diamond, E VS2 – 360° view
9.42 Carat Oval Lab Diamond, E VS2, IGI Sale price£2,720.00
8.15ct Oval lab-grown diamond, H VS28.15ct Oval lab-grown diamond, H VS2 – 360° view
8.15 Carat Oval Lab Diamond, H VS2, GIA Sale price£4,050.00
7.06ct Oval lab-grown diamond, F VS27.06ct Oval lab-grown diamond, F VS2 – 360° view
7.06 Carat Oval Lab Diamond, F VS2, GIA Sale price£3,520.00
5.02ct Oval lab-grown diamond, E SI15.02ct Oval lab-grown diamond, E SI1 – 360° view
5.02 Carat Oval Lab Diamond, E SI1, IGI Sale price£1,420.00
3.36ct Heart lab-grown diamond, F VS23.36ct Heart lab-grown diamond, F VS2 – 360° view
3.36 Carat Heart Lab Diamond, F VS2, GIA Sale price£1,070.00
3.13ct Heart lab-grown diamond, F VS23.13ct Heart lab-grown diamond, F VS2 – 360° view
3.13 Carat Heart Lab Diamond, F VS2, GIA Sale price£1,010.00
3.1ct Heart lab-grown diamond, E VS23.1ct Heart lab-grown diamond, E VS2 – 360° view
3.1 Carat Heart Lab Diamond, E VS2, GIA Sale price£1,000.00
2.96ct Heart lab-grown diamond, E VS22.96ct Heart lab-grown diamond, E VS2 – 360° view
2.96 Carat Heart Lab Diamond, E VS2, GIA Sale price£960.00
2.79ct Heart lab-grown diamond, E VS12.79ct Heart lab-grown diamond, E VS1 – 360° view
2.79 Carat Heart Lab Diamond, E VS1, GIA Sale price£930.00
2.42ct Heart lab-grown diamond, E VS22.42ct Heart lab-grown diamond, E VS2 – 360° view
2.42 Carat Heart Lab Diamond, E VS2, GIA Sale price£800.00
2.12ct Heart lab-grown diamond, E VS12.12ct Heart lab-grown diamond, E VS1 – 360° view
2.12 Carat Heart Lab Diamond, E VS1, GIA Sale price£720.00
2.09ct Heart lab-grown diamond, E VS12.09ct Heart lab-grown diamond, E VS1 – 360° view
2.09 Carat Heart Lab Diamond, E VS1, GIA Sale price£710.00
2.08ct Heart lab-grown diamond, E VS22.08ct Heart lab-grown diamond, E VS2 – 360° view
2.08 Carat Heart Lab Diamond, E VS2, GIA Sale price£700.00
2.07ct Heart lab-grown diamond, F VS22.07ct Heart lab-grown diamond, F VS2 – 360° view
2.07 Carat Heart Lab Diamond, F VS2, GIA Sale price£690.00
2.07ct Emerald lab-grown diamond, F VS22.07ct Emerald lab-grown diamond, F VS2 – 360° view
2.07 Carat Emerald Lab Diamond, F VS2, GIA Sale price£690.00
2.06ct Emerald lab-grown diamond, E VS22.06ct Emerald lab-grown diamond, E VS2 – 360° view
2.06 Carat Emerald Lab Diamond, E VS2, GIA Sale price£690.00
2.04ct Emerald lab-grown diamond, E VS22.04ct Emerald lab-grown diamond, E VS2 – 360° view
2.04 Carat Emerald Lab Diamond, E VS2, GIA Sale price£690.00
1.82ct Emerald lab-grown diamond, E VS21.82ct Emerald lab-grown diamond, E VS2 – 360° view
1.82 Carat Emerald Lab Diamond, E VS2, GIA Sale price£620.00
1.78ct Emerald lab-grown diamond, D VS21.78ct Emerald lab-grown diamond, D VS2 – 360° view
1.78 Carat Emerald Lab Diamond, D VS2, GIA Sale price£650.00
1.72ct Emerald lab-grown diamond, E VS11.72ct Emerald lab-grown diamond, E VS1 – 360° view
1.72 Carat Emerald Lab Diamond, E VS1, GIA Sale price£600.00
1.59ct Emerald lab-grown diamond, D VS11.59ct Emerald lab-grown diamond, D VS1 – 360° view
1.59 Carat Emerald Lab Diamond, D VS1, IGI Sale price£600.00
1.59ct Emerald lab-grown diamond, D VS11.59ct Emerald lab-grown diamond, D VS1 – 360° view
1.59 Carat Emerald Lab Diamond, D VS1, IGI Sale price£600.00
1.58ct Emerald lab-grown diamond, D VS11.58ct Emerald lab-grown diamond, D VS1 – 360° view
1.58 Carat Emerald Lab Diamond, D VS1, IGI Sale price£600.00
1.56ct Emerald lab-grown diamond, E VS21.56ct Emerald lab-grown diamond, E VS2 – 360° view
1.56 Carat Emerald Lab Diamond, E VS2, GIA Sale price£540.00
1.55ct Emerald lab-grown diamond, D VS21.55ct Emerald lab-grown diamond, D VS2 – 360° view
1.55 Carat Emerald Lab Diamond, D VS2, GIA Sale price£580.00
1.54ct Emerald lab-grown diamond, D VS21.54ct Emerald lab-grown diamond, D VS2 – 360° view
1.54 Carat Emerald Lab Diamond, D VS2, GIA Sale price£570.00
1.15ct Cushion lab-grown diamond, Fancy Intense Yellow, VVS21.15ct Cushion lab-grown diamond, Fancy Intense Yellow, VVS2 – 360° view
1.15 Carat Cushion Lab Diamond, Fancy Intense Yellow, VVS2, IGI Sale price£1,370.00
12.94ct Cushion lab-grown diamond, E SI112.94ct Cushion lab-grown diamond, E SI1 – 360° view
12.94 Carat Cushion Lab Diamond, E SI1, IGI Sale price£2,940.00
0.7ct Radiant lab-grown diamond, D VVS20.7ct Cushion Criss lab-grown diamond, D VVS2 – 360° view
0.7 Carat Radiant Lab Diamond, D VVS2, IGI Sale price£360.00
5.17 Carat Radiant Lab Diamond, Fancy Intense Pink, VS1, IGI Sale price£6,660.00
0.77ct Cushion lab-grown diamond, E VS10.77ct Cushion lab-grown diamond, E VS1 – 360° view
0.77 Carat Cushion Lab Diamond, E VS1, IGI Sale price£360.00
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 price£1,300.00
0.81ct Elongated Cushion lab-grown diamond, E VS10.81ct Elongated Cushion lab-grown diamond, E VS1 – 360° view
0.81 Carat Elongated Cushion Lab Diamond, E VS1, IGI Sale price£360.00
0.81ct Elongated Cushion lab-grown diamond, D VS10.81ct Elongated Cushion lab-grown diamond, D VS1 – 360° view
0.81 Carat Elongated Cushion Lab Diamond, D VS1, IGI Sale price£370.00
0.8ct Elongated Cushion lab-grown diamond, D VVS10.8ct Elongated Cushion lab-grown diamond, D VVS1 – 360° view
0.8 Carat Elongated Cushion Lab Diamond, D VVS1, IGI Sale price£400.00
0.78ct Elongated Cushion lab-grown diamond, D VS10.78ct Elongated Cushion lab-grown diamond, D VS1 – 360° view
0.78 Carat Elongated Cushion Lab Diamond, D VS1, IGI Sale price£360.00
0.74ct Elongated Cushion lab-grown diamond, E VVS20.74ct Elongated Cushion lab-grown diamond, E VVS2 – 360° view
0.74 Carat Elongated Cushion Lab Diamond, E VVS2, IGI Sale price£370.00
0.73ct Elongated Cushion lab-grown diamond, E VS10.73ct Elongated Cushion lab-grown diamond, E VS1 – 360° view
0.73 Carat Elongated Cushion Lab Diamond, E VS1, IGI Sale price£360.00
0.72ct Elongated Cushion lab-grown diamond, D VVS10.72ct Elongated Cushion lab-grown diamond, D VVS1 – 360° view
0.72 Carat Elongated Cushion Lab Diamond, D VVS1, IGI Sale price£390.00
0.71ct Elongated Cushion lab-grown diamond, E VS10.71ct Elongated Cushion lab-grown diamond, E VS1 – 360° view
0.71 Carat Elongated Cushion Lab Diamond, E VS1, IGI Sale price£350.00

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.