1.5 Carat Square Radiant Lab Grown Diamonds
Lab-grown diamond
RADIANT 1.52 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: 9979273533
Lab-grown diamond
RADIANT 1.52 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: 9973234879
Lab-grown diamond
RADIANT 1.56 cts.
Sparkle Factor: 86 %
Color: G - Very White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9973323808
Lab-grown diamond
RADIANT 1.53 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: 9971608612
Lab-grown diamond
RADIANT 1.78 cts.
Sparkle Factor: 93 %
Color: D - Best a girl can get
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9976534221
Lab-grown diamond
RADIANT 1.51 cts.
Sparkle Factor: 93 %
Color: E - Colorless
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977559021
Lab-grown diamond
RADIANT 1.50 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977595086
Lab-grown diamond
RADIANT 1.51 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9979282914
Lab-grown diamond
RADIANT 1.51 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970708388
Lab-grown diamond
RADIANT 1.52 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970708759
Lab-grown diamond
RADIANT 1.53 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975631247
Lab-grown diamond
RADIANT 1.57 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9973967648
Lab-grown diamond
RADIANT 1.55 cts.
Sparkle Factor: 90 %
Color: F - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977521922
Lab-grown diamond
RADIANT 1.56 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977521950
Lab-grown diamond
RADIANT 1.50 cts.
Sparkle Factor: 93 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975227067
Lab-grown diamond
RADIANT 1.56 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975631241
Lab-grown diamond
RADIANT 1.51 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970419133
Lab-grown diamond
RADIANT 1.51 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: 9974712658
Lab-grown diamond
RADIANT 1.58 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975116013
Lab-grown diamond
RADIANT 1.58 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975631276
Lab-grown diamond
RADIANT 1.52 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: 9970708766
Lab-grown diamond
RADIANT 1.59 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970708802
Lab-grown diamond
RADIANT 1.53 cts.
Sparkle Factor: 93 %
Color: E - Colorless
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970894623
Lab-grown diamond
RADIANT 1.52 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: 9972532276
Lab-grown diamond
RADIANT 1.52 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: 9974712973
Lab-grown diamond
RADIANT 1.53 cts.
Sparkle Factor: 93 %
Color: E - Colorless
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9974751424
Lab-grown diamond
RADIANT 1.51 cts.
Sparkle Factor: 93 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975645495
Lab-grown diamond
RADIANT 1.52 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: 9977522398
Lab-grown diamond
RADIANT 1.52 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: 9977522531
Lab-grown diamond
RADIANT 1.53 cts.
Sparkle Factor: 95 %
Color: D - Best a girl can get
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9973872062
Lab-grown diamond
RADIANT 1.53 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: 9974712630
Lab-grown diamond
RADIANT 1.54 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: 9974712644
Lab-grown diamond
RADIANT 1.55 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: 9974712665
Lab-grown diamond
RADIANT 1.54 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: 9975631254
Lab-grown diamond
RADIANT 1.54 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: 9976661795
Lab-grown diamond
RADIANT 1.53 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: 9977522412
Lab-grown diamond
RADIANT 1.55 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: 9977522559
Lab-grown diamond
RADIANT 1.52 cts.
Sparkle Factor: 87 %
Color: F - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9879153287
Lab-grown diamond
RADIANT 1.56 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: 9970709032
Lab-grown diamond
RADIANT 1.56 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: 9970709046
Lab-grown diamond
RADIANT 1.56 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: 9977514488
Lab-grown diamond
RADIANT 1.51 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: 9977551826
Lab-grown diamond
RADIANT 1.51 cts.
Sparkle Factor: 95 %
Color: D - Best a girl can get
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977833128
Lab-grown diamond
RADIANT 1.53 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9978716977
Lab-grown diamond
RADIANT 1.57 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: 9970709088
Lab-grown diamond
RADIANT 1.51 cts.
Sparkle Factor: 92 %
Color: F - Colorless
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9974111742
Lab-grown diamond
RADIANT 1.58 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: 9974710509
Lab-grown diamond
RADIANT 1.50 cts.
Sparkle Factor: 92 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975631229
Lab-grown diamond
RADIANT 1.50 cts.
Sparkle Factor: 92 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9976696110
Lab-grown diamond
RADIANT 1.94 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977376391
Lab-grown diamond
RADIANT 1.51 cts.
Sparkle Factor: 92 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977521908
Lab-grown diamond
RADIANT 1.57 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: 9977521936
Lab-grown diamond
RADIANT 1.57 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: 9977522447
Lab-grown diamond
RADIANT 1.50 cts.
Sparkle Factor: 92 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977522762
Lab-grown diamond
RADIANT 1.56 cts.
Sparkle Factor: 95 %
Color: D - Best a girl can get
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9978991342
Lab-grown diamond
RADIANT 1.50 cts.
Sparkle Factor: 93 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970419196
Lab-grown diamond
RADIANT 1.52 cts.
Sparkle Factor: 93 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970524470
Lab-grown diamond
RADIANT 1.83 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: 9970558440
Lab-grown diamond
RADIANT 1.52 cts.
Sparkle Factor: 93 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9972761315
Lab-grown diamond
RADIANT 1.87 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9974865131
1.5 carat square radiant diamonds: what to expect
A 1.5 carat diamond is a confident step up from one carat, large enough to read clearly as a statement stone. It looks about 14% wider than a 1 carat stone of the same shape and shows around 31% more surface from above, even though it weighs half as much again.
How big is a 1.5 carat square radiant diamond?
A 1.5 carat square radiant diamond typically measures about 6.5 x 6.3 mm, based on the stones in our stock today. A round diamond of the same weight measures about 7.4 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 1.5 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. Color and inclusions start to show more at this size, so G or better and VS2 or better are worth considering, particularly in step cuts.
1.5 carat square radiant diamond prices
Prices step up again at 1.50 carats, so a stone between 1.50 and 1.60 gives the look of a "carat and a half" for the least premium.
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 1.5 carat square radiant diamond in our stock is $404 lab grown, against $4,240 natural. Compare 1.5 carat square radiant natural diamonds.
Other sizes
Compare square radiant lab grown diamonds at 1 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 1.5 carat square radiant diamond?
A 1.5 carat square radiant diamond typically measures about 6.5 x 6.3 mm, based on the stones in our stock today. Exact measurements are on each stone's certificate.
How much does a 1.5 carat square radiant lab grown diamond cost?
Today our 1.5 carat square radiant lab grown diamonds range from $404 to $2,496, across 304 stones. Color, clarity, cut and the exact carat weight make the difference.
Should I choose a natural or lab grown 1.5 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 1.5 carat square radiant diamond in our stock is $404 lab grown, against $4,240 natural. Both are graded on the same 4Cs and come with a certificate.
What color and clarity should a 1.5 carat square radiant diamond be?
Color and inclusions start to show more at this size, so G or better and VS2 or better are worth considering, particularly in step cuts.
