1 Carat Radiant Lab Grown Diamonds
RADIANT 1.07 cts.
Sparkle Factor: 82 %
Colour: H - White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9877182360
RADIANT 1.00 cts.
Sparkle Factor: 84 %
Colour: G - Very White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9872323396
RADIANT 1.04 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9870525857
RADIANT 1.04 cts.
Sparkle Factor: 84 %
Colour: G - Very White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9873565832
RADIANT 1.06 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9873610766
RADIANT 1.05 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9877405148
RADIANT 1.02 cts.
Sparkle Factor: 87 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9871432118
RADIANT 1.01 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875249860
RADIANT 1.00 cts.
Sparkle Factor: 84 %
Colour: F - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9871552917
RADIANT 1.01 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9871152637
RADIANT 1.00 cts.
Sparkle Factor: 86 %
Colour: F - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875542845
RADIANT 1.01 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9878861877
RADIANT 1.19 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9877953375
RADIANT 1.01 cts.
Sparkle Factor: 83 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9871337156
RADIANT 1.03 cts.
Sparkle Factor: 83 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9877799044
RADIANT 1.02 cts.
Sparkle Factor: 86 %
Colour: G - Very White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9872545156
RADIANT 1.01 cts.
Sparkle Factor: 82 %
Colour: H - White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9874880972
RADIANT 1.00 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875546673
RADIANT 1.01 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9876671546
RADIANT 1.00 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9876847023
RADIANT 1.02 cts.
Sparkle Factor: 86 %
Colour: F - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9879288738
RADIANT 1.01 cts.
Sparkle Factor: 86 %
Colour: F - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9879662103
RADIANT 1.00 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9870235369
RADIANT 1.01 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9871399281
RADIANT 1.02 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9872074411
RADIANT 1.01 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9872305691
RADIANT 1.00 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9872367697
RADIANT 1.01 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9874721009
RADIANT 1.01 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9874803377
RADIANT 1.09 cts.
Sparkle Factor: 86 %
Colour: F - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9879511023
RADIANT 1.05 cts.
Sparkle Factor: 86 %
Colour: H - White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9870695985
RADIANT 1.03 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9871720763
RADIANT 1.05 cts.
Sparkle Factor: 86 %
Colour: F - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9872181644
RADIANT 1.02 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9873110553
RADIANT 1.01 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9873481608
RADIANT 1.09 cts.
Sparkle Factor: 86 %
Colour: F - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9874529740
RADIANT 1.02 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875499374
RADIANT 1.00 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9876768608
RADIANT 1.04 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9877760503
RADIANT 1.03 cts.
Sparkle Factor: 87 %
Colour: H - White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9879320076
RADIANT 1.25 cts.
Sparkle Factor: 86 %
Colour: G - Very White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9879724657
RADIANT 1.04 cts.
Sparkle Factor: 84 %
Colour: H - White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9870531897
RADIANT 1.10 cts.
Sparkle Factor: 84 %
Colour: F - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9871534822
RADIANT 1.00 cts.
Sparkle Factor: 85 %
Colour: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9872418953
RADIANT 1.00 cts.
Sparkle Factor: 86 %
Colour: H - White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9873386640
RADIANT 1.04 cts.
Sparkle Factor: 82 %
Colour: F - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9873422531
RADIANT 1.04 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875677195
RADIANT 1.21 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9876857733
RADIANT 1.10 cts.
Sparkle Factor: 87 %
Colour: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9877743936
RADIANT 1.05 cts.
Sparkle Factor: 87 %
Colour: H - White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9872690005
RADIANT 1.07 cts.
Sparkle Factor: 86 %
Colour: G - Very White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9873057899
RADIANT 1.14 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875881029
RADIANT 1.02 cts.
Sparkle Factor: 85 %
Colour: F - Colourless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9876768622
RADIANT 1.00 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9878290508
RADIANT 1.02 cts.
Sparkle Factor: 88 %
Colour: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9878574033
RADIANT 1.04 cts.
Sparkle Factor: 89 %
Colour: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9879264560
RADIANT 1.06 cts.
Sparkle Factor: 82 %
Colour: G - Very White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9871576185
RADIANT 1.07 cts.
Sparkle Factor: 87 %
Colour: H - White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9872689998
RADIANT 1.02 cts.
Sparkle Factor: 87 %
Colour: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9872935636
RADIANT 1.13 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9874453154
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 7.0 x 5.0 mm, based on the stones in our stock today. A round diamond of the same weight measures about 6.5 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 lab grown diamond has the same chemistry, hardness and sparkle as a natural diamond, at a fraction of the price, which is why it is a popular way to reach a larger size. Today the lowest priced 1 carat radiant diamond in our stock is $393 lab grown, against $1,854 natural. Compare 1 carat radiant natural diamonds.
Other sizes
Compare radiant lab grown 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 7.0 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 lab grown diamond cost?
Today our 1 carat radiant lab grown diamonds range from $393 to $7,391, across 9,452 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 lab grown diamond has the same chemistry, hardness and sparkle as a natural diamond, at a fraction of the price, which is why it is a popular way to reach a larger size. Today the lowest priced 1 carat radiant diamond in our stock is $393 lab grown, against $1,854 natural. 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.