1 Carat Square Radiant Lab Grown Diamonds
Lab-grown diamond
RADIANT 1.01 cts.
Sparkle Factor: 89 %
Color: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875249860
Lab-grown diamond
RADIANT 1.06 cts.
Sparkle Factor: 88 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9872454378
Lab-grown diamond
RADIANT 1.03 cts.
Sparkle Factor: 91 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9879248949
Lab-grown diamond
RADIANT 1.00 cts.
Sparkle Factor: 86 %
Color: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9873458397
Lab-grown diamond
RADIANT 1.09 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9873235096
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 89 %
Color: E - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875626529
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 89 %
Color: E - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875626893
Lab-grown diamond
RADIANT 1.03 cts.
Sparkle Factor: 89 %
Color: E - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631080
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 93 %
Color: E - Colorless
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9877557516
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631180
Lab-grown diamond
RADIANT 1.01 cts.
Sparkle Factor: 92 %
Color: F - Colorless
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9879740832
Lab-grown diamond
RADIANT 1.05 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875626851
Lab-grown diamond
RADIANT 1.01 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631038
Lab-grown diamond
RADIANT 1.01 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631212
Lab-grown diamond
RADIANT 1.00 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631731
Lab-grown diamond
RADIANT 1.05 cts.
Sparkle Factor: 92 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875716598
Lab-grown diamond
RADIANT 1.03 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9871333621
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9872269564
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875626747
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875626865
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631338
Lab-grown diamond
RADIANT 1.03 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9871534143
Lab-grown diamond
RADIANT 1.04 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875626830
Lab-grown diamond
RADIANT 1.07 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631170
Lab-grown diamond
RADIANT 1.04 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631198
Lab-grown diamond
RADIANT 1.04 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631205
Lab-grown diamond
RADIANT 1.04 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631297
Lab-grown diamond
RADIANT 1.04 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631674
Lab-grown diamond
RADIANT 1.04 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631751
Lab-grown diamond
RADIANT 1.14 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9877650135
Lab-grown diamond
RADIANT 1.05 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9870708332
Lab-grown diamond
RADIANT 1.05 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9870708661
Lab-grown diamond
RADIANT 1.00 cts.
Sparkle Factor: 92 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9872269609
Lab-grown diamond
RADIANT 1.05 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875626739
Lab-grown diamond
RADIANT 1.00 cts.
Sparkle Factor: 92 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875626880
Lab-grown diamond
RADIANT 1.05 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875630835
Lab-grown diamond
RADIANT 1.00 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631072
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 90 %
Color: F - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631315
Lab-grown diamond
RADIANT 1.00 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631345
Lab-grown diamond
RADIANT 1.05 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631758
Lab-grown diamond
RADIANT 1.00 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631772
Lab-grown diamond
RADIANT 1.01 cts.
Sparkle Factor: 91 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9877038011
Lab-grown diamond
RADIANT 1.01 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9870708900
Lab-grown diamond
RADIANT 1.03 cts.
Sparkle Factor: 90 %
Color: F - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875626844
Lab-grown diamond
RADIANT 1.01 cts.
Sparkle Factor: 92 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875630848
Lab-grown diamond
RADIANT 1.01 cts.
Sparkle Factor: 92 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875630855
Lab-grown diamond
RADIANT 1.07 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631010
Lab-grown diamond
RADIANT 1.01 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631031
Lab-grown diamond
RADIANT 1.03 cts.
Sparkle Factor: 90 %
Color: F - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631086
Lab-grown diamond
RADIANT 1.06 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631145
Lab-grown diamond
RADIANT 1.01 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631152
Lab-grown diamond
RADIANT 1.07 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631703
Lab-grown diamond
RADIANT 1.04 cts.
Sparkle Factor: 90 %
Color: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875631738
Lab-grown diamond
RADIANT 1.00 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9870419336
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9870708564
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9870708570
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9870708797
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9870708948
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 92 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9872269553
Lab-grown diamond
RADIANT 1.02 cts.
Sparkle Factor: 92 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9875626977
1 carat square 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 square radiant diamond?
A 1 carat square radiant diamond typically measures about 5.6 mm, based on the stones in our stock today. A round diamond of the same weight measures about 6.5 mm across, so the square 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 square radiant diamond
Every stone here has a length-to-width ratio of 1.08 or under, so it faces up as a square with trimmed corners; the brilliant faceting hides small inclusions well, so VS2 or SI1 is often clean to the eye. At this size G or H color and VS2 or SI1 clarity usually look white and clean to the eye, leaving more of your budget for cut and size.
1 carat square 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 square radiant diamond in our stock is $303 lab grown, against $1,274 natural. Compare 1 carat square radiant natural diamonds.
Other sizes
Compare square radiant lab grown diamonds at 1.5 carat, 2 carat, 3 carat or 5 carat. Or browse every square radiant lab grown diamond, from under a carat upwards.
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 square radiant diamond?
A 1 carat square radiant diamond typically measures about 5.6 mm, based on the stones in our stock today. Exact measurements are on each stone's certificate.
How much does a 1 carat square radiant lab grown diamond cost?
Today our 1 carat square radiant lab grown diamonds range from $303 to $1,999, across 358 stones. Color, clarity, cut and the exact carat weight make the difference.
Should I choose a natural or lab grown 1 carat square 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 square radiant diamond in our stock is $303 lab grown, against $1,274 natural. Both are graded on the same 4Cs and come with a certificate.
What color and clarity should a 1 carat square radiant diamond be?
At this size G or H color and VS2 or SI1 clarity usually look white and clean to the eye, leaving more of your budget for cut and size.
