1 Carat Radiant Natural Diamonds
RADIANT 1.00 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 72469089
RADIANT 1.05 cts.
Sparkle Factor: 78 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71325686
RADIANT 1.00 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 74747888
RADIANT 1.01 cts.
Sparkle Factor: 78 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77542856
RADIANT 1.01 cts.
Sparkle Factor: 74 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Good
Fluorescence: None
Diamond ID: 71377674
RADIANT 1.12 cts.
Sparkle Factor: 75 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 75491346
RADIANT 1.04 cts.
Sparkle Factor: 62 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: Faint Blue
Diamond ID: 72350930
RADIANT 1.00 cts.
Sparkle Factor: 75 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70527314
RADIANT 1.01 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 75805334
RADIANT 1.01 cts.
Sparkle Factor: 67 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 71412779
RADIANT 1.02 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70963649
RADIANT 1.01 cts.
Sparkle Factor: 70 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 74526884
RADIANT 1.00 cts.
Sparkle Factor: 77 %
Colour: H - White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74646052
RADIANT 1.04 cts.
Sparkle Factor: 77 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 77338993
RADIANT 1.01 cts.
Sparkle Factor: 77 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70788561
RADIANT 1.13 cts.
Sparkle Factor: 75 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Very Slight Blue
Diamond ID: 70879351
RADIANT 1.02 cts.
Sparkle Factor: 67 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 71636639
RADIANT 1.00 cts.
Sparkle Factor: 71 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 77215128
RADIANT 1.01 cts.
Sparkle Factor: 82 %
Colour: F - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71379452
RADIANT 1.01 cts.
Sparkle Factor: 65 %
Colour: H - White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 70561596
RADIANT 1.02 cts.
Sparkle Factor: 79 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71786776
RADIANT 1.01 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77759858
RADIANT 1.00 cts.
Sparkle Factor: 76 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74675431
RADIANT 1.00 cts.
Sparkle Factor: 77 %
Colour: J - Slightly Tinted
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 75773052
RADIANT 1.01 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77789013
RADIANT 1.20 cts.
Sparkle Factor: 64 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Strong Blue
Diamond ID: 70823277
RADIANT 1.00 cts.
Sparkle Factor: 76 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76324149
RADIANT 1.02 cts.
Sparkle Factor: 79 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 75613964
RADIANT 1.01 cts.
Sparkle Factor: 70 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Medium Blue
Diamond ID: 77392771
RADIANT 1.01 cts.
Sparkle Factor: 73 %
Colour: E - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: Medium Blue
Diamond ID: 70168718
RADIANT 1.00 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 71234418
RADIANT 1.01 cts.
Sparkle Factor: 75 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 72743065
RADIANT 1.02 cts.
Sparkle Factor: 75 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71750102
RADIANT 1.00 cts.
Sparkle Factor: 76 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76748700
RADIANT 1.01 cts.
Sparkle Factor: 78 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70321269
RADIANT 1.11 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 70509292
RADIANT 1.00 cts.
Sparkle Factor: 68 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 70120397
RADIANT 1.01 cts.
Sparkle Factor: 76 %
Colour: H - White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 71664737
RADIANT 1.00 cts.
Sparkle Factor: 75 %
Colour: E - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Medium Blue
Diamond ID: 71821299
RADIANT 1.01 cts.
Sparkle Factor: 76 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76746236
RADIANT 1.01 cts.
Sparkle Factor: 75 %
Colour: I - Low White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 77857682
RADIANT 1.01 cts.
Sparkle Factor: 76 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78841521
RADIANT 1.00 cts.
Sparkle Factor: 79 %
Colour: H - White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76768222
RADIANT 1.01 cts.
Sparkle Factor: 71 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Good
Fluorescence: Faint Blue
Diamond ID: 71534138
RADIANT 1.06 cts.
Sparkle Factor: 76 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74541577
RADIANT 1.01 cts.
Sparkle Factor: 82 %
Colour: F - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 74600835
RADIANT 1.02 cts.
Sparkle Factor: 79 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71558232
RADIANT 1.02 cts.
Sparkle Factor: 75 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 71596214
RADIANT 1.02 cts.
Sparkle Factor: 77 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71705351
RADIANT 1.05 cts.
Sparkle Factor: 77 %
Colour: J - Slightly Tinted
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76484673
RADIANT 1.01 cts.
Sparkle Factor: 82 %
Colour: E - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71617970
RADIANT 1.01 cts.
Sparkle Factor: 77 %
Colour: E - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Medium Blue
Diamond ID: 71727212
RADIANT 1.01 cts.
Sparkle Factor: 80 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71960228
RADIANT 1.01 cts.
Sparkle Factor: 77 %
Colour: I - Low White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78827457
RADIANT 1.04 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76629042
RADIANT 1.01 cts.
Sparkle Factor: 79 %
Colour: I - Low White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74378940
RADIANT 1.01 cts.
Sparkle Factor: 71 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Medium Blue
Diamond ID: 71380768
RADIANT 1.01 cts.
Sparkle Factor: 79 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70107321
RADIANT 1.01 cts.
Sparkle Factor: 76 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71686183
RADIANT 1.02 cts.
Sparkle Factor: 80 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71369246
1 carat radiant diamonds: what to expect
One carat is the most popular engagement ring size and the point where a diamond starts to look substantial on the hand.
How big is a 1 carat radiant diamond?
A 1 carat radiant diamond typically measures about 6.5 x 5.0 mm, based on the stones in our stock today. A round diamond of the same weight measures about 6.4 mm across, so the radiant looks a similar size on the hand. Carat measures weight, not size, so cut and proportions affect how big a stone looks.
Choosing a 1 carat radiant diamond
Radiants come square (ratio up to 1.08) or elongated (1.15 and up); the brilliant faceting hides small inclusions well. At this size G or H colour and VS2 or SI1 clarity usually look white and clean to the eye, leaving more of your budget for cut and size.
1 carat radiant diamond prices
Prices step up at the 1.00 carat mark, so a stone just over it carries the "one carat" name for the smallest premium; anything from about 1.20 carats adds visible size.
Natural or lab grown?
A natural diamond is formed over billions of years and each one is rare; many buyers value that origin. A lab grown diamond of the same grades costs far less. Today the lowest priced 1 carat radiant diamond in our stock is $1,854 natural, against $407 lab grown. Compare 1 carat radiant lab grown diamonds.
Other sizes
Compare radiant natural diamonds at 1.5 carat, 2 carat, 3 carat or 5 carat.
Setting your diamond
Every diamond here can be set in an engagement ring, pendant or earrings made to order in our Bourton-on-the-Water workshop, hallmarked in the UK. Browse engagement rings or design your own. If the stone you want is not listed, our team can source it for you.
Your questions answered
How big is a 1 carat radiant diamond?
A 1 carat radiant diamond typically measures about 6.5 x 5.0 mm, based on the stones in our stock today. Exact measurements are on each stone's certificate.
How much does a 1 carat radiant natural diamond cost?
Today our 1 carat radiant natural diamonds range from $1,854 to $25,987, across 3,126 stones. Colour, clarity, cut and the exact carat weight make the difference.
Should I choose a natural or lab grown 1 carat radiant diamond?
A natural diamond is formed over billions of years and each one is rare; many buyers value that origin. A lab grown diamond of the same grades costs far less. Today the lowest priced 1 carat radiant diamond in our stock is $1,854 natural, against $407 lab grown. Both are graded on the same 4Cs and come with a certificate.
What colour and clarity should a 1 carat radiant diamond be?
At this size G or H colour and VS2 or SI1 clarity usually look white and clean to the eye, leaving more of your budget for cut and size.