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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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2284 products

11.07ct Marquise lab-grown diamond, F VS211.07ct Marquise lab-grown diamond, F VS2 – 360° view
11.07 Carat Marquise Lab Diamond, F VS2, IGI Sale price£3,150.00
8.06ct Marquise lab-grown diamond, F VS18.06ct Marquise lab-grown diamond, F VS1 – 360° view
8.06 Carat Marquise Lab Diamond, F VS1, IGI Sale price£2,410.00
3.02ct Marquise lab-grown diamond, E VS13.02ct Marquise lab-grown diamond, E VS1 – 360° view
3.02 Carat Marquise Lab Diamond, E VS1, IGI Sale price£990.00
1.58ct Marquise lab-grown diamond, E VVS21.58ct Marquise lab-grown diamond, E VVS2 – 360° view
1.58 Carat Marquise Lab Diamond, E VVS2, IGI Sale price£580.00
0.92ct Marquise lab-grown diamond, D VVS20.92ct Marquise lab-grown diamond, D VVS2 – 360° view
0.92 Carat Marquise Lab Diamond, D VVS2, IGI Sale price£380.00
5.05ct Emerald lab-grown diamond, E VVS15.05ct Emerald lab-grown diamond, E VVS1 – 360° view
5.05 Carat Emerald Lab Diamond, E VVS1, IGI Sale price£1,680.00
8.1ct Heart lab-grown diamond, E VVS28.1ct Heart lab-grown diamond, E VVS2 – 360° view
8.1 Carat Heart Lab Diamond, E VVS2, IGI Sale price£2,520.00
0.74ct Heart lab-grown diamond, Fancy Vivid Pink, VVS20.74ct Heart lab-grown diamond, Fancy Vivid Pink, VVS2 – 360° view
0.74 Carat Heart Lab Diamond, Fancy Vivid Pink, VVS2, IGI Sale price£1,070.00
3.82ct Emerald lab-grown diamond, D VS13.82ct Emerald lab-grown diamond, D VS1 – 360° view
3.82 Carat Emerald Lab Diamond, D VS1, GIA Sale price£1,330.00
2.08ct Emerald lab-grown diamond, F VS12.08ct Emerald lab-grown diamond, F VS1 – 360° view
2.08 Carat Emerald Lab Diamond, F VS1, IGI Sale price£710.00
1.4ct Emerald lab-grown diamond, E VS21.4ct Emerald lab-grown diamond, E VS2 – 360° view
1.4 Carat Emerald Lab Diamond, E VS2, IGI Sale price£490.00
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
5.09ct Elongated Cushion lab-grown diamond, D VVS25.09ct Elongated Cushion lab-grown diamond, D VVS2 – 360° view
5.09 Carat Elongated Cushion Lab Diamond, D VVS2, IGI Sale price£1,710.00
5.07ct Elongated Cushion lab-grown diamond, E VVS25.07ct Elongated Cushion lab-grown diamond, E VVS2 – 360° view
5.07 Carat Elongated Cushion Lab Diamond, E VVS2, IGI Sale price£1,580.00
1ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS11ct Elongated Cushion lab-grown diamond, Fancy Vivid Blue, VS1 – 360° view
1 Carat Elongated Cushion Lab Diamond, Fancy Vivid Blue, VS1, IGI Sale price£1,260.00
0.9ct Elongated Cushion lab-grown diamond, D VVS20.9ct Elongated Cushion lab-grown diamond, D VVS2 – 360° view
0.9 Carat Elongated Cushion Lab Diamond, D VVS2, IGI Sale price£420.00
5.51ct Cushion lab-grown diamond, E VS15.51ct Cushion lab-grown diamond, E VS1 – 360° view
5.51 Carat Cushion Lab Diamond, E VS1, IGI Sale price£1,630.00
2.52ct Square Emerald lab-grown diamond, E VS12.52ct Square Emerald lab-grown diamond, E VS1 – 360° view
2.52 Carat Square Emerald Lab Diamond, E VS1, IGI Sale price£850.00
0.99ct Square Emerald lab-grown diamond, E VS10.99ct Square Emerald lab-grown diamond, E VS1 – 360° view
0.99 Carat Square Emerald Lab Diamond, E VS1, IGI Sale price£380.00
3.5ct Round lab-grown diamond, F VS13.5ct Round lab-grown diamond, F VS1 – 360° view
3.5 Carat Round Lab Diamond, F VS1, Ideal Cut, IGI Sale price£1,050.00
3.03ct Round lab-grown diamond, F VVS23.03ct Round lab-grown diamond, F VVS2 – 360° view
3.03 Carat Round Lab Diamond, F VVS2, Ideal Cut, IGI Sale price£960.00
2.05ct Round lab-grown diamond, E VS22.05ct Round lab-grown diamond, E VS2 – 360° view
2.05 Carat Round Lab Diamond, E VS2, Excellent Cut, GIA Sale price£640.00
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
1.1ct Round lab-grown diamond, E VS11.1ct Round lab-grown diamond, E VS1 – 360° view
1.1 Carat Round Lab Diamond, E VS1, Excellent Cut, GIA Sale price£470.00
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, Excellent Cut, IGI Sale price£380.00
1.09ct Round lab-grown diamond, E VVS21.09ct Round lab-grown diamond, E VVS2 – 360° view
1.09 Carat Round Lab Diamond, E VVS2, Ideal Cut, IGI Sale price£390.00
1.08ct Round lab-grown diamond, E VVS21.08ct Round lab-grown diamond, E VVS2 – 360° view
1.08 Carat Round Lab Diamond, E VVS2, Excellent Cut, IGI Sale price£390.00
1.08ct Round lab-grown diamond, E VVS21.08ct Round lab-grown diamond, E VVS2 – 360° view
1.08 Carat Round Lab Diamond, E VVS2, Excellent Cut, IGI Sale price£390.00
1ct Round lab-grown diamond, D VVS21ct Round lab-grown diamond, D VVS2 – 360° view
1 Carat Round Lab Diamond, D VVS2, Excellent Cut, IGI Sale price£390.00
0.93ct Round lab-grown diamond, Fancy Yellow, VVS20.93ct Round lab-grown diamond, Fancy Yellow, VVS2 – 360° view
0.93 Carat Round Lab Diamond, Fancy Yellow, VVS2, IGI Sale price£1,140.00
4.08ct Radiant lab-grown diamond, E VVS14.08ct Radiant lab-grown diamond, E VVS1 – 360° view
4.08 Carat Radiant Lab Diamond, E VVS1, IGI Sale price£1,380.00
1.54ct Radiant lab-grown diamond, E VS11.54ct Radiant lab-grown diamond, E VS1 – 360° view
1.54 Carat Radiant Lab Diamond, E VS1, GIA Sale price£540.00
0.85ct Radiant lab-grown diamond, E VVS10.85ct Radiant lab-grown diamond, E VVS1 – 360° view
0.85 Carat Radiant Lab Diamond, E VVS1, IGI Sale price£390.00
0.83ct Radiant lab-grown diamond, Fancy Vivid Pink, VVS20.83ct Radiant lab-grown diamond, Fancy Vivid Pink, VVS2 – 360° view
0.83 Carat Radiant Lab Diamond, Fancy Vivid Pink, VVS2, IGI Sale price£1,120.00
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
1.93ct Princess lab-grown diamond, F VVS21.93ct Princess lab-grown diamond, F VVS2 – 360° view
1.93 Carat Princess Lab Diamond, F VVS2, IGI Sale price£690.00
2.03ct Princess lab-grown diamond, E VS22.03ct Princess lab-grown diamond, E VS2 – 360° view
2.03 Carat Princess Lab Diamond, E VS2, GIA Sale price£680.00
1.42ct Princess lab-grown diamond, D VS11.42ct Princess lab-grown diamond, D VS1 – 360° view
1.42 Carat Princess Lab Diamond, D VS1, IGI Sale price£540.00
4.16ct Pear lab-grown diamond, E VS24.16ct Pear lab-grown diamond, E VS2 – 360° view
4.16 Carat Pear Lab Diamond, E VS2, GIA Sale price£1,940.00
1.23ct Pear lab-grown diamond, D VVS21.23ct Pear lab-grown diamond, D VVS2 – 360° view
1.23 Carat Pear Lab Diamond, D VVS2, IGI Sale price£500.00
0.8ct Pear lab-grown diamond, D VS10.8ct Pear lab-grown diamond, D VS1 – 360° view
0.8 Carat Pear Lab Diamond, D VS1, IGI Sale price£350.00
5ct Oval lab-grown diamond, Fancy Vivid Yellow, VS25ct Oval lab-grown diamond, Fancy Vivid Yellow, VS2 – 360° view
5 Carat Oval Lab Diamond, Fancy Vivid Yellow, VS2, IGI Sale price£5,160.00
3.02ct Oval lab-grown diamond, E VVS23.02ct Oval lab-grown diamond, E VVS2 – 360° view
3.02 Carat Oval Lab Diamond, E VVS2, IGI Sale price£1,030.00
1.43ct Oval lab-grown diamond, D VS11.43ct Oval lab-grown diamond, D VS1 – 360° view
1.43 Carat Oval Lab Diamond, D VS1, IGI Sale price£550.00
9.2ct Marquise lab-grown diamond, F VS19.2ct Marquise lab-grown diamond, F VS1 – 360° view
9.2 Carat Marquise Lab Diamond, F VS1, IGI Sale price£2,720.00
3.02ct Marquise lab-grown diamond, E VS13.02ct Marquise lab-grown diamond, E VS1 – 360° view
3.02 Carat Marquise Lab Diamond, E VS1, IGI Sale price£990.00
0.91ct Marquise lab-grown diamond, E VVS20.91ct Marquise lab-grown diamond, E VVS2 – 360° view
0.91 Carat Marquise Lab Diamond, E VVS2, IGI Sale price£380.00
3.01ct Heart lab-grown diamond, Fancy Intense Yellow, VS13.01ct Heart lab-grown diamond, Fancy Intense Yellow, VS1 – 360° view
3.01 Carat Heart Lab Diamond, Fancy Intense Yellow, VS1, IGI Sale price£3,090.00

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.