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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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2248 products

0.74ct Round lab-grown diamond, E VVS10.74ct Round lab-grown diamond, E VVS1 – 360° view
0.74 Carat Round Lab Diamond, E VVS1, Ideal Cut, IGI Sale price£370.00
1.08ct Round lab-grown diamond, D VS21.08ct Round lab-grown diamond, D VS2 – 360° view
1.08 Carat Round Lab Diamond, D VS2, Excellent Cut, GIA Sale price£460.00
1.09ct Round lab-grown diamond, D VS11.09ct Round lab-grown diamond, D VS1 – 360° view
1.09 Carat Round Lab Diamond, D VS1, Ideal Cut, IGI Sale price£410.00
1.09ct Round lab-grown diamond, E VS11.09ct Round lab-grown diamond, E VS1 – 360° view
1.09 Carat Round Lab Diamond, E VS1, Ideal Cut, IGI Sale price£380.00
1.09ct Round lab-grown diamond, E VS11.09ct Round lab-grown diamond, E VS1 – 360° view
1.09 Carat Round Lab Diamond, E VS1, Ideal Cut, IGI Sale price£380.00
1.58ct Round lab-grown diamond, E VVS21.58ct Round lab-grown diamond, E VVS2 – 360° view
1.58 Carat Round Lab Diamond, E VVS2, Ideal Cut, IGI Sale price£540.00
1.59ct Round lab-grown diamond, E VVS21.59ct Round lab-grown diamond, E VVS2 – 360° view
1.59 Carat Round Lab Diamond, E VVS2, Excellent Cut, IGI Sale price£540.00
1.59ct Round lab-grown diamond, E VVS21.59ct Round lab-grown diamond, E VVS2 – 360° view
1.59 Carat Round Lab Diamond, E VVS2, Ideal Cut, IGI Sale price£540.00
2.1ct Round lab-grown diamond, E VS12.1ct Round lab-grown diamond, E VS1 – 360° view
2.1 Carat Round Lab Diamond, E VS1, Excellent Cut, GIA Sale price£670.00
3.07ct Round lab-grown diamond, F VS23.07ct Round lab-grown diamond, F VS2 – 360° view
3.07 Carat Round Lab Diamond, F VS2, Excellent Cut, GIA Sale price£920.00
4.91ct Round lab-grown diamond, G VS14.91ct Round lab-grown diamond, G VS1 – 360° view
4.91 Carat Round Lab Diamond, G VS1, Ideal Cut, IGI Sale price£1,350.00
5.01ct Round lab-grown diamond, E VVS25.01ct Round lab-grown diamond, E VVS2 – 360° view
5.01 Carat Round Lab Diamond, E VVS2, Ideal Cut, IGI Sale price£1,500.00
1.58ct Square Emerald lab-grown diamond, E VVS21.58ct Square Emerald lab-grown diamond, E VVS2 – 360° view
1.58 Carat Square Emerald Lab Diamond, E VVS2, IGI Sale price£580.00
5.07ct Square Emerald lab-grown diamond, D VS15.07ct Square Emerald lab-grown diamond, D VS1 – 360° view
5.07 Carat Square Emerald Lab Diamond, D VS1, IGI Sale price£1,710.00
1.59ct Square Emerald lab-grown diamond, E VS11.59ct Square Emerald lab-grown diamond, E VS1 – 360° view
1.59 Carat Square Emerald Lab Diamond, E VS1, IGI Sale price£560.00
3.52ct Cushion lab-grown diamond, E VVS23.52ct Cushion lab-grown diamond, E VVS2 – 360° view
3.52 Carat Cushion Lab Diamond, E VVS2, IGI Sale price£1,170.00
3ct Round lab-grown diamond, E VVS23ct Round lab-grown diamond, E VVS2 – 360° view
3 Carat Round Lab Diamond, E VVS2, Excellent Cut, IGI Sale price£950.00
1.08ct Elongated Cushion lab-grown diamond, D VS11.08ct Elongated Cushion lab-grown diamond, D VS1 – 360° view
1.08 Carat Elongated Cushion Lab Diamond, D VS1, IGI Sale price£470.00
4.05ct Emerald lab-grown diamond, D VVS24.05ct Emerald lab-grown diamond, D VVS2 – 360° view
4.05 Carat Emerald Lab Diamond, D VVS2, IGI Sale price£1,450.00
4.05ct Elongated Cushion lab-grown diamond, E VVS24.05ct Elongated Cushion lab-grown diamond, E VVS2 – 360° view
4.05 Carat Elongated Cushion Lab Diamond, E VVS2, IGI Sale price£1,320.00
3.02ct Oval lab-grown diamond, D VS13.02ct Oval lab-grown diamond, D VS1 – 360° view
3.02 Carat Oval Lab Diamond, D VS1, IGI Sale price£1,070.00
0.85ct Emerald lab-grown diamond, D VS10.85ct Emerald lab-grown diamond, D VS1 – 360° view
0.85 Carat Emerald Lab Diamond, D VS1, IGI Sale price£360.00
1.57ct Emerald lab-grown diamond, D VVS21.57ct Emerald lab-grown diamond, D VVS2 – 360° view
1.57 Carat Emerald Lab Diamond, D VVS2, IGI Sale price£620.00
1.21ct Emerald lab-grown diamond, G VS11.21ct Emerald lab-grown diamond, G VS1 – 360° view
1.21 Carat Emerald Lab Diamond, G VS1, IGI Sale price£420.00
1.6ct Emerald lab-grown diamond, D VVS21.6ct Emerald lab-grown diamond, D VVS2 – 360° view
1.6 Carat Emerald Lab Diamond, D VVS2, IGI Sale price£630.00
1.65ct Emerald lab-grown diamond, E VS11.65ct Emerald lab-grown diamond, E VS1 – 360° view
1.65 Carat Emerald Lab Diamond, E VS1, IGI Sale price£580.00
1.07ct Emerald lab-grown diamond, D VVS21.07ct Emerald lab-grown diamond, D VVS2 – 360° view
1.07 Carat Emerald Lab Diamond, D VVS2, IGI Sale price£440.00
3.08ct Emerald lab-grown diamond, E VS13.08ct Emerald lab-grown diamond, E VS1 – 360° view
3.08 Carat Emerald Lab Diamond, E VS1, IGI Sale price£1,010.00
1.08ct Pear lab-grown diamond, D VVS21.08ct Pear lab-grown diamond, D VVS2 – 360° view
1.08 Carat Pear Lab Diamond, D VVS2, IGI Sale price£440.00
5.07ct Emerald lab-grown diamond, E VS15.07ct Emerald lab-grown diamond, E VS1 – 360° view
5.07 Carat Emerald Lab Diamond, E VS1, IGI Sale price£1,590.00
3.08ct Marquise lab-grown diamond, E VS13.08ct Marquise lab-grown diamond, E VS1 – 360° view
3.08 Carat Marquise Lab Diamond, E VS1, IGI Sale price£1,010.00
1.59ct Heart lab-grown diamond, D VS11.59ct Heart lab-grown diamond, D VS1 – 360° view
1.59 Carat Heart Lab Diamond, D VS1, IGI Sale price£600.00
3.03ct Round lab-grown diamond, E VS13.03ct Round lab-grown diamond, E VS1 – 360° view
3.03 Carat Round Lab Diamond, E VS1, Ideal Cut, IGI Sale price£930.00
0.84ct Marquise lab-grown diamond, D VS10.84ct Marquise lab-grown diamond, D VS1 – 360° view
0.84 Carat Marquise Lab Diamond, D VS1, IGI Sale price£380.00
3.01ct Pear lab-grown diamond, D VS13.01ct Pear lab-grown diamond, D VS1 – 360° view
3.01 Carat Pear Lab Diamond, D VS1, IGI Sale price£1,070.00
1.09ct Marquise lab-grown diamond, D VS11.09ct Marquise lab-grown diamond, D VS1 – 360° view
1.09 Carat Marquise Lab Diamond, D VS1, IGI Sale price£430.00
1.59ct Marquise lab-grown diamond, E VS11.59ct Marquise lab-grown diamond, E VS1 – 360° view
1.59 Carat Marquise Lab Diamond, E VS1, IGI Sale price£560.00
5.04ct Emerald lab-grown diamond, E VVS25.04ct Emerald lab-grown diamond, E VVS2 – 360° view
5.04 Carat Emerald Lab Diamond, E VVS2, IGI Sale price£1,640.00
1.57ct Marquise lab-grown diamond, E VVS21.57ct Marquise lab-grown diamond, E VVS2 – 360° view
1.57 Carat Marquise Lab Diamond, E VVS2, IGI Sale price£570.00
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4.09 Carat Marquise Lab Diamond, E VVS1, IGI Sale price£1,390.00

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.