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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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2367 products

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£370.00
0.81ct Elongated Cushion lab-grown diamond, E VVS20.81ct Elongated Cushion lab-grown diamond, E VVS2 – 360° view
0.81 Carat Elongated Cushion Lab Diamond, E VVS2, IGI Sale price£380.00
0.81ct Elongated Cushion lab-grown diamond, D VS20.81ct Elongated Cushion lab-grown diamond, D VS2 – 360° view
0.81 Carat Elongated Cushion Lab Diamond, D VS2, IGI Sale price£370.00
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£380.00
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£380.00
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£380.00
0.8ct Cushion lab-grown diamond, E VS10.8ct Cushion lab-grown diamond, E VS1 – 360° view
0.8 Carat Cushion Lab Diamond, E VS1, IGI Sale price£370.00
0.8ct Elongated Cushion lab-grown diamond, E VVS20.8ct Elongated Cushion lab-grown diamond, E VVS2 – 360° view
0.8 Carat Elongated Cushion Lab Diamond, E VVS2, IGI Sale price£380.00
0.8ct Elongated Cushion lab-grown diamond, D VS10.8ct Elongated Cushion lab-grown diamond, D VS1 – 360° view
0.8 Carat Elongated Cushion Lab Diamond, D VS1, IGI Sale price£370.00
0.8ct Elongated Cushion lab-grown diamond, D VS10.8ct Elongated Cushion lab-grown diamond, D VS1 – 360° view
0.8 Carat Elongated Cushion Lab Diamond, D VS1, IGI Sale price£370.00
0.8ct Elongated Cushion lab-grown diamond, D VS10.8ct Elongated Cushion lab-grown diamond, D VS1 – 360° view
0.8 Carat Elongated Cushion Lab Diamond, D VS1, IGI Sale price£370.00
0.79ct Elongated Cushion lab-grown diamond, D VS10.79ct Elongated Cushion lab-grown diamond, D VS1 – 360° view
0.79 Carat Elongated Cushion Lab Diamond, D VS1, IGI Sale price£380.00
0.78ct Elongated Cushion lab-grown diamond, F VS10.78ct Elongated Cushion lab-grown diamond, F VS1 – 360° view
0.78 Carat Elongated Cushion Lab Diamond, F VS1, IGI Sale price£370.00
0.78ct Elongated Cushion lab-grown diamond, E VS10.78ct Elongated Cushion lab-grown diamond, E VS1 – 360° view
0.78 Carat Elongated Cushion Lab Diamond, E VS1, IGI Sale price£370.00
0.78ct Cushion lab-grown diamond, E VS10.78ct Cushion lab-grown diamond, E VS1 – 360° view
0.78 Carat Cushion Lab Diamond, E VS1, IGI Sale price£360.00
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
0.77ct Cushion lab-grown diamond, Fancy Vivid Pink, VS10.77ct Cushion lab-grown diamond, Fancy Vivid Pink, VS1 – 360° view
0.77 Carat Cushion Lab Diamond, Fancy Vivid Pink, VS1, IGI Sale price£1,040.00
0.77ct Cushion lab-grown diamond, D VS10.77ct Cushion lab-grown diamond, D VS1 – 360° view
0.77 Carat Cushion Lab Diamond, D VS1, IGI Sale price£370.00
0.76ct Elongated Cushion lab-grown diamond, Fancy Intense Pink, VVS20.76ct Elongated Cushion lab-grown diamond, Fancy Intense Pink, VVS2 – 360° view
0.76 Carat Elongated Cushion Lab Diamond, Fancy Intense Pink, VVS2, IGI Sale price£1,030.00
0.76ct Elongated Cushion lab-grown diamond, Fancy Vivid Pink, VS10.76ct Elongated Cushion lab-grown diamond, Fancy Vivid Pink, VS1 – 360° view
0.76 Carat Elongated Cushion Lab Diamond, Fancy Vivid Pink, VS1, IGI Sale price£1,030.00
0.74ct Elongated Cushion lab-grown diamond, Fancy Vivid Pink, VVS20.74ct Elongated Cushion lab-grown diamond, Fancy Vivid Pink, VVS2 – 360° view
0.74 Carat Elongated Cushion Lab Diamond, Fancy Vivid Pink, VVS2, IGI Sale price£1,010.00
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
0.73ct 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
0.71ct Elongated Cushion lab-grown diamond, Fancy Vivid Pink, VS10.71ct Elongated Cushion lab-grown diamond, Fancy Vivid Pink, VS1 – 360° view
0.71 Carat Elongated Cushion Lab Diamond, Fancy Vivid Pink, VS1, IGI Sale price£970.00
0.7ct Elongated Cushion lab-grown diamond, Fancy Vivid Pink, VS10.7ct Elongated Cushion lab-grown diamond, Fancy Vivid Pink, VS1 – 360° view
0.7 Carat Elongated Cushion Lab Diamond, Fancy Vivid Pink, VS1, IGI Sale price£960.00
0.7ct Cushion lab-grown diamond, D VVS20.7ct Cushion lab-grown diamond, D VVS2 – 360° view
0.7 Carat Cushion Lab Diamond, D VVS2, IGI Sale price£370.00
0.6ct Elongated Cushion lab-grown diamond, Fancy Yellow, VVS20.6ct Elongated Cushion lab-grown diamond, Fancy Yellow, VVS2 – 360° view
0.6 Carat Elongated Cushion Lab Diamond, Fancy Yellow, VVS2, IGI Sale price£770.00
0.57ct Elongated Cushion lab-grown diamond, Fancy Vivid Pink, VVS20.57ct Elongated Cushion lab-grown diamond, Fancy Vivid Pink, VVS2 – 360° view
0.57 Carat Elongated Cushion Lab Diamond, Fancy Vivid Pink, VVS2, IGI Sale price£770.00
0.55ct Cushion lab-grown diamond, Fancy Vivid Pink, VVS20.55ct Cushion lab-grown diamond, Fancy Vivid Pink, VVS2 – 360° view
0.55 Carat Cushion Lab Diamond, Fancy Vivid Pink, VVS2, IGI Sale price£750.00
10.54ct Radiant lab-grown diamond, F VS110.54ct Cushion Criss lab-grown diamond, F VS1 – 360° view
10.54 Carat Radiant Lab Diamond, F VS1, IGI Sale price£2,760.00
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5.13 Carat Ganpati Lab Diamond, E VS1, IGI Sale price£5,770.00
12.34ct Round lab-grown diamond, F VS212.34ct Round lab-grown diamond, F VS2 – 360° view
12.34 Carat Round Lab Diamond, F VS2, Ideal Cut, IGI Sale price£6,630.00
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17.6 Carat Elongated Cushion Lab Diamond, G SI1, IGI Sale price£3,580.00
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11.57 Carat Triangle Lab Diamond, E VS2, IGI Sale price£4,960.00
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10.11 Carat Triangle Lab Diamond, F VS2, IGI Sale price£4,340.00
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16.62 Carat Round Lab Diamond, F VS2, Ideal Cut, IGI Sale price£6,670.00
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16.35 Carat Round Lab Diamond, F VS2, Ideal Cut, IGI Sale price£6,570.00
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15.09 Carat Round Lab Diamond, E SI1, Ideal Cut, IGI Sale price£5,100.00
13.21ct Radiant lab-grown diamond, F VS213.21ct Radiant lab-grown diamond, F VS2 – 360° view
13.21 Carat Radiant Lab Diamond, F VS2, IGI Sale price£3,690.00
12.45ct Oval lab-grown diamond, E VS212.45ct Oval lab-grown diamond, E VS2 – 360° view
12.45 Carat Oval Lab Diamond, E VS2, IGI Sale price£3,500.00
16.01ct Elongated Cushion lab-grown diamond, F VS216.01ct Elongated Cushion lab-grown diamond, F VS2 – 360° view
16.01 Carat Elongated Cushion Lab Diamond, F VS2, IGI Sale price£3,800.00
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12.8 Carat Triangle Lab Diamond, E VS1, IGI Sale price£5,470.00
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16.24 Carat Round Lab Diamond, F VS2, Ideal Cut, IGI Sale price£6,520.00
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15.44 Carat Round Lab Diamond, F VS2, Ideal Cut, IGI Sale price£6,210.00
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15.32 Carat Round Lab Diamond, F SI1, Ideal Cut, IGI Sale price£5,170.00
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13.26 Carat Round Lab Diamond, F SI1, Ideal Cut, IGI Sale price£3,080.00
12.75ct Radiant lab-grown diamond, G VS212.75ct Radiant lab-grown diamond, G VS2 – 360° view
12.75 Carat Radiant Lab Diamond, G VS2, IGI Sale price£3,400.00
8.74ct Radiant lab-grown diamond, F VS28.74ct Radiant lab-grown diamond, F VS2 – 360° view
8.74 Carat Radiant Lab Diamond, F VS2, GIA Sale price£4,560.00

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.