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  • 1 Carat Lab Grown Diamonds

1 Carat Lab Grown Diamonds

Discover our collection of 1 carat lab grown diamonds. A 1 carat diamond is the classic benchmark size for an engagement ring, and every stone shown is independently certified, with live 1 carat stock below.

Shape

Round Diamond Round
Princess Diamond Princess
Oval Diamond Oval
Emerald Diamond Emerald
Cushion Diamond Cushion
Asscher Diamond Asscher
Marquise Diamond Marquise
Pear Diamond Pear
Heart Diamond Heart
Radiant Diamond Radiant

Diamond

Mined
Lab Grown
Either
coloured diamond

Carat Weight

£ +/- 5%

Colour

D
E
F
G
H
I
J

Clarity

FL
IF
VVS1
VVS2
VS1
VS2
SI1
SI2

Finish

Fluorescence Intensity

None
Faint Blue
Very Slight Blue
Slight Blue
Medium Blue
Strong Blue
Very Strong Blue
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diamond
Typical High St. Price £382
Today £191 inc. VAT

EMERALD 1.02 cts.

Sparkle Factor 89 %

Colour D - Best a girl can get

Clarity SI1 - Slight Marks

Diamond ID: 9870102887

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diamond
Typical High St. Price £382
Today £191 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 85 %

Colour D - Best a girl can get

Clarity SI1 - Slight Marks

Diamond ID: 9874235012

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diamond
Typical High St. Price £382
Today £191 inc. VAT

EMERALD 1.02 cts.

Sparkle Factor 84 %

Colour E - Colourless

Clarity SI2 - Slight Marks

Diamond ID: 9875790876

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diamond
Typical High St. Price £382
Today £191 inc. VAT

EMERALD 1.00 cts.

Sparkle Factor 80 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9878358502

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diamond
Typical High St. Price £382
Today £191 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9878727204

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diamond
Typical High St. Price £389
Today £194 inc. VAT

EMERALD 1.03 cts.

Sparkle Factor 89 %

Colour D - Best a girl can get

Clarity SI1 - Slight Marks

Diamond ID: 9870799709

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diamond
Typical High St. Price £396
Today £198 inc. VAT

EMERALD 1.02 cts.

Sparkle Factor 89 %

Colour D - Best a girl can get

Clarity SI1 - Slight Marks

Diamond ID: 9870141906

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diamond
Typical High St. Price £396
Today £198 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9871028729

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diamond
Typical High St. Price £396
Today £198 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9873526696

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diamond
Typical High St. Price £396
Today £198 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9874666611

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diamond
Typical High St. Price £396
Today £198 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9875211492

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diamond
Typical High St. Price £396
Today £198 inc. VAT

EMERALD 1.00 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9875211499

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diamond
Typical High St. Price £396
Today £198 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9877430669

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diamond
Typical High St. Price £396
Today £198 inc. VAT

EMERALD 1.00 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9877463612

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.05 cts.

Sparkle Factor 82 %

Colour F - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9870659219

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 86 %

Colour F - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9870795623

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.00 cts.

Sparkle Factor 86 %

Colour F - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9871368782

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.08 cts.

Sparkle Factor 84 %

Colour F - Colourless

Clarity SI2 - Slight Marks

Diamond ID: 9872240990

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.00 cts.

Sparkle Factor 86 %

Colour E - Colourless

Clarity SI2 - Slight Marks

Diamond ID: 9873401886

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.00 cts.

Sparkle Factor 83 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9873700568

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 85 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9874078289

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.00 cts.

Sparkle Factor 80 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9874614307

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 84 %

Colour F - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9875622252

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.07 cts.

Sparkle Factor 89 %

Colour D - Best a girl can get

Clarity SI1 - Slight Marks

Diamond ID: 9875699099

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 84 %

Colour F - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9876278462

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.10 cts.

Sparkle Factor 89 %

Colour D - Best a girl can get

Clarity SI1 - Slight Marks

Diamond ID: 9877119071

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diamond
Typical High St. Price £403
Today £202 inc. VAT

RADIANT 1.07 cts.

Sparkle Factor 82 %

Colour H - White

Clarity SI1 - Slight Marks

Diamond ID: 9877182360

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diamond
Typical High St. Price £403
Today £202 inc. VAT

EMERALD 1.00 cts.

Sparkle Factor 86 %

Colour F - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9877474658

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diamond
Typical High St. Price £410
Today £205 inc. VAT

EMERALD 1.01 cts.

Sparkle Factor 84 %

Colour F - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9870425504

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diamond
Typical High St. Price £410
Today £205 inc. VAT

PEARSHAPE 1.00 cts.

Sparkle Factor 80 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9870579189

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diamond
Typical High St. Price £410
Today £205 inc. VAT

RADIANT 1.00 cts.

Sparkle Factor 84 %

Colour G - Very White

Clarity SI1 - Slight Marks

Diamond ID: 9872323396

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diamond
Typical High St. Price £410
Today £205 inc. VAT

HEART 1.00 cts.

Sparkle Factor 86 %

Colour E - Colourless

Clarity SI2 - Slight Marks

Diamond ID: 9877376370

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diamond
Typical High St. Price £418
Today £209 inc. VAT

RADIANT 1.04 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9870525857

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diamond
Typical High St. Price £418
Today £209 inc. VAT

EMERALD 1.03 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9873254101

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diamond
Typical High St. Price £418
Today £209 inc. VAT

PEARSHAPE 1.02 cts.

Sparkle Factor 85 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9874569486

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diamond
Typical High St. Price £418
Today £209 inc. VAT

EMERALD 1.02 cts.

Sparkle Factor 84 %

Colour G - Very White

Clarity SI1 - Slight Marks

Diamond ID: 9874658715

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diamond
Typical High St. Price £418
Today £209 inc. VAT

EMERALD 1.08 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9874907987

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diamond
Typical High St. Price £418
Today £209 inc. VAT

EMERALD 1.04 cts.

Sparkle Factor 86 %

Colour F - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9875318313

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diamond
Typical High St. Price £418
Today £209 inc. VAT

EMERALD 1.06 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9875730199

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diamond
Typical High St. Price £418
Today £209 inc. VAT

EMERALD 1.08 cts.

Sparkle Factor 85 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9876597605

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diamond
Typical High St. Price £418
Today £209 inc. VAT

EMERALD 1.04 cts.

Sparkle Factor 82 %

Colour F - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9877461224

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diamond
Typical High St. Price £418
Today £209 inc. VAT

RADIANT 1.04 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9879915253

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diamond
Typical High St. Price £425
Today £212 inc. VAT

PEARSHAPE 1.00 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9871240969

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diamond
Typical High St. Price £425
Today £212 inc. VAT

PEARSHAPE 1.10 cts.

Sparkle Factor 86 %

Colour F - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9871368705

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diamond
Typical High St. Price £425
Today £212 inc. VAT

EMERALD 1.00 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9871763169

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diamond
Typical High St. Price £425
Today £212 inc. VAT

PEARSHAPE 1.04 cts.

Sparkle Factor 80 %

Colour G - Very White

Clarity SI1 - Slight Marks

Diamond ID: 9872269060

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diamond
Typical High St. Price £425
Today £212 inc. VAT

RADIANT 1.04 cts.

Sparkle Factor 84 %

Colour G - Very White

Clarity SI1 - Slight Marks

Diamond ID: 9873565832

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diamond
Typical High St. Price £425
Today £212 inc. VAT

RADIANT 1.06 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9873610766

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diamond
Typical High St. Price £425
Today £212 inc. VAT

RADIANT 1.05 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9877405148

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diamond
Typical High St. Price £425
Today £212 inc. VAT

EMERALD 1.03 cts.

Sparkle Factor 84 %

Colour G - Very White

Clarity SI1 - Slight Marks

Diamond ID: 9877787172

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diamond
Typical High St. Price £425
Today £212 inc. VAT

EMERALD 1.00 cts.

Sparkle Factor 83 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9878613166

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diamond
Typical High St. Price £432
Today £216 inc. VAT

PEARSHAPE 1.01 cts.

Sparkle Factor 83 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9870665939

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diamond
Typical High St. Price £432
Today £216 inc. VAT

PEARSHAPE 1.00 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9872673051

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diamond
Typical High St. Price £432
Today £216 inc. VAT

PEARSHAPE 1.02 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9872868877

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diamond
Typical High St. Price £432
Today £216 inc. VAT

PEARSHAPE 1.09 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9874124882

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diamond
Typical High St. Price £432
Today £216 inc. VAT

EMERALD 1.21 cts.

Sparkle Factor 84 %

Colour G - Very White

Clarity SI1 - Slight Marks

Diamond ID: 9874522342

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diamond
Typical High St. Price £432
Today £216 inc. VAT

EMERALD 1.00 cts.

Sparkle Factor 85 %

Colour D - Best a girl can get

Clarity SI1 - Slight Marks

Diamond ID: 9875279799

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diamond
Typical High St. Price £432
Today £216 inc. VAT

ASSCHER 1.00 cts.

Sparkle Factor 85 %

Colour D - Best a girl can get

Clarity SI1 - Slight Marks

Diamond ID: 9875862142

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diamond
Typical High St. Price £432
Today £216 inc. VAT

PEARSHAPE 1.09 cts.

Sparkle Factor 87 %

Colour E - Colourless

Clarity SI1 - Slight Marks

Diamond ID: 9876127702

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diamond
Typical High St. Price £432
Today £216 inc. VAT

PEARSHAPE 1.00 cts.

Sparkle Factor 80 %

Colour F - Colourless

Clarity SI2 - Slight Marks

Diamond ID: 9877474608

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There are no matches - Please redefine your search
Carat is a measure of weight rather than size, so the way a 1 carat diamond looks on the hand depends a great deal on its shape and cut quality. Elongated shapes such as oval, marquise and pear tend to look larger than round or cushion at the same 1 carat weight, while a well-cut round brilliant returns the most light. Lab grown stones offer this size at a fraction of the price of an equivalent mined diamond, with identical optical and physical properties, we show the full certified specification on every stone so you can balance colour, clarity and cut against budget. Use the filters to narrow by shape, colour and clarity, or talk to our team for a one-to-one recommendation.

Does a 1 carat diamond look big?

Carat is weight rather than diameter, so apparent size depends on shape and cut. Elongated shapes such as oval, marquise and pear look larger than round or cushion at the same 1 carat weight.

Are 1 carat lab grown diamonds certified?

Yes. Every stone is graded by GIA or IGI, with the full report available so you can verify carat weight, colour, clarity and cut.

What affects the price of a 1 carat diamond?

Cut, colour and clarity alongside the carat weight. Two 1 carat diamonds can differ widely in price depending on these factors.

Which shape looks largest at 1 carat?

Elongated cuts spread their weight across a longer outline, so oval, marquise and pear tend to look biggest, while round and cushion read closer to their true 1 carat weight.

Explore Other 1 Carat Lab Grown Diamond Shapes

Round Diamonds Princess Diamonds Oval Diamonds Emerald Diamonds Cushion Diamonds Asscher Diamonds Marquise Diamonds Pear Diamonds Heart Diamonds Radiant Diamonds

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