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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 £1,118
Today £810 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 £1,269
Today £920 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 £1,333
Today £966 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 £1,333
Today £966 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 £1,335
Today £968 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 £1,357
Today £983 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 £1,365
Today £989 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 £1,367
Today £991 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 77 %

Colour F - Colourless

Clarity SI2 - Slight Marks

Diamond ID: 73780466

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diamond
Typical High St. Price £1,378
Today £998 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 £1,378
Today £998 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 £1,378
Today £998 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 £1,388
Today £1,006 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 £1,391
Today £1,008 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 £1,391
Today £1,008 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 £1,394
Today £1,010 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 £1,410
Today £1,021 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 £1,433
Today £1,039 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 £1,441
Today £1,044 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 £1,444
Today £1,046 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 £1,447
Today £1,048 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 £1,447
Today £1,048 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 £1,460
Today £1,058 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 59 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 77268205

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diamond
Typical High St. Price £1,465
Today £1,062 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 79 %

Colour H - White

Clarity SI2 - Slight Marks

Diamond ID: 74026497

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diamond
Typical High St. Price £1,471
Today £1,066 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 £1,471
Today £1,066 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 £1,471
Today £1,066 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 £1,471
Today £1,066 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 £1,471
Today £1,066 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 £1,473
Today £1,068 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 £1,484
Today £1,075 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 £1,484
Today £1,075 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 74 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 70913175

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diamond
Typical High St. Price £1,484
Today £1,075 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 £1,484
Today £1,075 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 £1,492
Today £1,081 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 £1,494
Today £1,083 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 £1,505
Today £1,091 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 £1,521
Today £1,102 inc. VAT

ROUND 1.02 cts.

Sparkle Factor 75 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 77657902

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diamond
Typical High St. Price £1,537
Today £1,114 inc. VAT

ROUND 1.03 cts.

Sparkle Factor 72 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 70272948

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diamond
Typical High St. Price £1,539
Today £1,116 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 71 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 77743940

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diamond
Typical High St. Price £1,539
Today £1,116 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 £1,547
Today £1,121 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 £1,553
Today £1,125 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 £1,553
Today £1,125 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 £1,563
Today £1,133 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 £1,577
Today £1,142 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 75 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 72160700

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diamond
Typical High St. Price £1,577
Today £1,142 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 £1,579
Today £1,144 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 80 %

Colour H - White

Clarity SI2 - Slight Marks

Diamond ID: 70752518

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diamond
Typical High St. Price £1,582
Today £1,146 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 £1,582
Today £1,146 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 £1,584
Today £1,148 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 £1,595
Today £1,156 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 £1,595
Today £1,156 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 73 %

Colour I - Low White

Clarity SI2 - Slight Marks

Diamond ID: 77848820

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diamond
Typical High St. Price £1,598
Today £1,158 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 £1,598
Today £1,158 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 £1,600
Today £1,160 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 65 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 75501676

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diamond
Typical High St. Price £1,603
Today £1,162 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 £1,603
Today £1,162 inc. VAT

ROUND 1.01 cts.

Sparkle Factor 75 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 77848666

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diamond
Typical High St. Price £1,606
Today £1,164 inc. VAT

ROUND 1.00 cts.

Sparkle Factor 84 %

Colour E - Colourless

Clarity SI2 - Slight Marks

Diamond ID: 70935925

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diamond
Typical High St. Price £1,606
Today £1,164 inc. VAT

ROUND 1.05 cts.

Sparkle Factor 66 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 70341590

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diamond
Typical High St. Price £1,611
Today £1,167 inc. VAT

ROUND 1.29 cts.

Sparkle Factor 75 %

Colour J - Slightly Tinted

Clarity SI2 - Slight Marks

Diamond ID: 79626333

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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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