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  • Round 1 Carat Natural Diamonds

1 Carat Round Brilliant Diamonds

A 1 carat round brilliant diamond pairs a substantial carat weight with the character of the round brilliant cut. With 57 to 58 precisely arranged facets, the round brilliant returns more light than any other cut, which is why it remains the most popular and most versatile diamond shape. Browse our certified 1 carat round diamonds below; each is formed naturally over billions of years and independently graded, with the full report available.

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 £932
Today £675 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 73 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 71517919

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diamond
Typical High St. Price £1,058
Today £766 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 67 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 78012404

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diamond
Typical High St. Price £1,111
Today £805 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 68 %

Colour J - Slightly Tinted

Clarity SI1 - Slight Marks

Diamond ID: 73953387

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diamond
Typical High St. Price £1,111
Today £805 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 67 %

Colour J - Slightly Tinted

Clarity SI1 - Slight Marks

Diamond ID: 73368809

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diamond
Typical High St. Price £1,130
Today £819 inc. VAT

ROUND 1.13 cts.

Sparkle Factor 80 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 70566528

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diamond
Typical High St. Price £1,133
Today £821 inc. VAT

ROUND 1.02 cts.

Sparkle Factor 71 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 70788771

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diamond
Typical High St. Price £1,137
Today £824 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 74 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 70797850

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diamond
Typical High St. Price £1,148
Today £832 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 71 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 73605620

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diamond
Typical High St. Price £1,148
Today £832 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 67 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 73605627

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diamond
Typical High St. Price £1,148
Today £832 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 69 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 78734231

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diamond
Typical High St. Price £1,157
Today £838 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 75 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 72893363

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diamond
Typical High St. Price £1,159
Today £840 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 67 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 75823083

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diamond
Typical High St. Price £1,159
Today £840 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 66 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 71202387

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diamond
Typical High St. Price £1,175
Today £851 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 67 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 71311643

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diamond
Typical High St. Price £1,175
Today £851 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 75 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 72568435

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diamond
Typical High St. Price £1,192
Today £864 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 73 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 70182263

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diamond
Typical High St. Price £1,195
Today £866 inc. VAT

ROUND 1.20 cts.

Sparkle Factor 71 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 70358737

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diamond
Typical High St. Price £1,201
Today £870 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 73 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 75307616

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diamond
Typical High St. Price £1,203
Today £872 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 73 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 70358730

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diamond
Typical High St. Price £1,206
Today £874 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 67 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 78310051

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diamond
Typical High St. Price £1,206
Today £874 inc. VAT

ROUND 1.20 cts.

Sparkle Factor 75 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 77691489

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diamond
Typical High St. Price £1,225
Today £888 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 75 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 74842222

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diamond
Typical High St. Price £1,225
Today £888 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 76 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 71668146

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diamond
Typical High St. Price £1,225
Today £888 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 69 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 73803288

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diamond
Typical High St. Price £1,225
Today £888 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 71 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 71618068

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diamond
Typical High St. Price £1,225
Today £888 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 71 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 71067903

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diamond
Typical High St. Price £1,228
Today £890 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 71 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 71065633

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diamond
Typical High St. Price £1,236
Today £896 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 65 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 73737759

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diamond
Typical High St. Price £1,236
Today £896 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 63 %

Colour J - Slightly Tinted

Clarity VS2 - V.Slight Marks

Diamond ID: 73367283

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diamond
Typical High St. Price £1,236
Today £896 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 69 %

Colour J - Slightly Tinted

Clarity VS2 - V.Slight Marks

Diamond ID: 73368221

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diamond
Typical High St. Price £1,243
Today £901 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 75 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 76249438

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diamond
Typical High St. Price £1,243
Today £901 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 72 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 70798928

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diamond
Typical High St. Price £1,248
Today £904 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 65 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 74381908

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diamond
Typical High St. Price £1,278
Today £926 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 63 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 71937380

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diamond
Typical High St. Price £1,283
Today £930 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 66 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 70857875

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diamond
Typical High St. Price £1,283
Today £930 inc. VAT

ROUND 1.02 cts.

Sparkle Factor 77 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 75100150

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diamond
Typical High St. Price £1,287
Today £933 inc. VAT

ROUND 1.03 cts.

Sparkle Factor 74 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 71639397

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diamond
Typical High St. Price £1,289
Today £934 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 73 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 73060244

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diamond
Typical High St. Price £1,289
Today £934 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 69 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 77848785

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diamond
Typical High St. Price £1,292
Today £936 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 75 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 77848771

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diamond
Typical High St. Price £1,292
Today £936 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 67 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 70376734

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diamond
Typical High St. Price £1,294
Today £938 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 65 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 71417707

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diamond
Typical High St. Price £1,294
Today £938 inc. VAT

ROUND 1.02 cts.

Sparkle Factor 73 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 73734378

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diamond
Typical High St. Price £1,296
Today £939 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 71 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 78614747

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diamond
Typical High St. Price £1,303
Today £944 inc. VAT

ROUND 1.03 cts.

Sparkle Factor 75 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 71644621

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diamond
Typical High St. Price £1,307
Today £947 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 77 %

Colour I - Low White

Clarity SI1 - Slight Marks

Diamond ID: 70682455

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diamond
Typical High St. Price £1,307
Today £947 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 75 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 73425761

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diamond
Typical High St. Price £1,312
Today £950 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 63 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 77193034

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diamond
Typical High St. Price £1,314
Today £952 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 75 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 73054952

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diamond
Typical High St. Price £1,314
Today £952 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 65 %

Colour J - Slightly Tinted

Clarity SI1 - Slight Marks

Diamond ID: 79761922

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diamond
Typical High St. Price £1,316
Today £954 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 80 %

Colour H - White

Clarity SI2 - Slight Marks

Diamond ID: 70752519

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diamond
Typical High St. Price £1,318
Today £955 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 70 %

Colour J - Slightly Tinted

Clarity VS1 - V.Slight Marks

Diamond ID: 73366856

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diamond
Typical High St. Price £1,318
Today £955 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 70 %

Colour J - Slightly Tinted

Clarity VS1 - V.Slight Marks

Diamond ID: 73367185

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diamond
Typical High St. Price £1,320
Today £957 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 69 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 79571053

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diamond
Typical High St. Price £1,329
Today £963 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 75 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 77848806

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diamond
Typical High St. Price £1,329
Today £963 inc. VAT

ROUND 1.02 cts.

Sparkle Factor 62 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 77747622

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diamond
Typical High St. Price £1,331
Today £965 inc. VAT

ROUND 1.11 cts.

Sparkle Factor 75 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 76969711

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diamond
Typical High St. Price £1,331
Today £965 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 66 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 72069834

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diamond
Typical High St. Price £1,336
Today £968 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 73 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 74844875

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diamond
Typical High St. Price £1,338
Today £970 inc. VAT

ROUND 1.05 cts.

Sparkle Factor 66 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 70341590

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There are no matches - Please redefine your search
At 1 carat the round brilliant cut makes a clear statement. A round brilliant reads true to its carat weight and suits every style of setting. This shape suits anyone who wants maximum sparkle and timeless, resale-friendly appeal. It works in every metal and looks classic in a four- or six-claw solitaire. Every natural, mined stone shown is GIA or IGI certified, so you can compare cut, colour and clarity at a glance. A natural stone of this size is a genuine rarity, and the certificate confirms its weight, colour and clarity. Stock updates continuously; if you do not see the exact combination you want, our team can source it.

How big does a 1 carat round brilliant diamond look?

A round brilliant reads true to its carat weight and suits every style of setting. Carat measures weight rather than diameter, so cut and shape strongly affect how large the stone appears.

Why choose the round brilliant cut at 1 carat?

With 57 to 58 precisely arranged facets, the round brilliant returns more light than any other cut, which is why it remains the most popular and most versatile diamond shape.

Are 1 carat round brilliant natural, mined diamonds certified?

Yes, every 1 carat round brilliant diamond is graded by GIA or IGI, with a report confirming carat weight, colour, clarity and cut.

How should a 1 carat round brilliant diamond be set?

It works in every metal and looks classic in a four- or six-claw solitaire.

Explore Other 1 Carat Natural Diamond Shapes

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

Round Brilliant Cut Jewellery

Engagement Rings Earrings

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