1.5 Carat Radiant Natural Diamonds
RADIANT 1.50 cts.
Sparkle Factor: 75 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70504676
RADIANT 1.51 cts.
Sparkle Factor: 78 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78211223
RADIANT 1.51 cts.
Sparkle Factor: 74 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79695983
RADIANT 1.50 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 72911975
RADIANT 1.50 cts.
Sparkle Factor: 78 %
Colour: I - Low White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 72000646
RADIANT 1.51 cts.
Sparkle Factor: 72 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 77857122
RADIANT 1.51 cts.
Sparkle Factor: 79 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71794517
RADIANT 1.51 cts.
Sparkle Factor: 75 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71943414
RADIANT 1.54 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 70895008
RADIANT 1.51 cts.
Sparkle Factor: 74 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71445347
RADIANT 1.51 cts.
Sparkle Factor: 78 %
Colour: I - Low White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71861815
RADIANT 1.52 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71414326
RADIANT 1.52 cts.
Sparkle Factor: 70 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 74747839
RADIANT 1.50 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70012919
RADIANT 1.50 cts.
Sparkle Factor: 77 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70307037
RADIANT 1.51 cts.
Sparkle Factor: 80 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71367055
RADIANT 1.52 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 74309474
RADIANT 1.50 cts.
Sparkle Factor: 75 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71492278
RADIANT 1.50 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76745662
RADIANT 1.50 cts.
Sparkle Factor: 77 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79354852
RADIANT 1.50 cts.
Sparkle Factor: 77 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70990045
RADIANT 1.51 cts.
Sparkle Factor: 63 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Strong Blue
Diamond ID: 72014338
RADIANT 1.52 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76951868
RADIANT 1.50 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 75901058
RADIANT 1.50 cts.
Sparkle Factor: 71 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Medium Blue
Diamond ID: 75550939
RADIANT 1.50 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 72027894
RADIANT 1.51 cts.
Sparkle Factor: 76 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70279104
RADIANT 1.51 cts.
Sparkle Factor: 82 %
Colour: E - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71872182
RADIANT 1.51 cts.
Sparkle Factor: 67 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 75487628
RADIANT 1.51 cts.
Sparkle Factor: 79 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79200625
RADIANT 1.50 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 78760371
RADIANT 1.53 cts.
Sparkle Factor: 73 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 72965784
RADIANT 1.50 cts.
Sparkle Factor: 77 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77612676
RADIANT 1.50 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 72209815
RADIANT 1.52 cts.
Sparkle Factor: 77 %
Colour: J - Slightly Tinted
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71518080
RADIANT 1.50 cts.
Sparkle Factor: 78 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76516695
RADIANT 1.50 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 77668431
RADIANT 1.50 cts.
Sparkle Factor: 75 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 74369426
RADIANT 1.50 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 73973857
RADIANT 1.51 cts.
Sparkle Factor: 67 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 70865799
RADIANT 1.51 cts.
Sparkle Factor: 78 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76381684
RADIANT 1.50 cts.
Sparkle Factor: 77 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71712645
RADIANT 1.50 cts.
Sparkle Factor: 76 %
Colour: F - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 70887828
RADIANT 1.50 cts.
Sparkle Factor: 70 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 77395896
RADIANT 1.51 cts.
Sparkle Factor: 79 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72088834
RADIANT 1.70 cts.
Sparkle Factor: 78 %
Colour: J - Slightly Tinted
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71680298
RADIANT 1.51 cts.
Sparkle Factor: 75 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 77576080
RADIANT 1.50 cts.
Sparkle Factor: 77 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 76339772
RADIANT 1.50 cts.
Sparkle Factor: 79 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70743296
RADIANT 1.55 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 79542981
RADIANT 1.70 cts.
Sparkle Factor: 78 %
Colour: H - White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70477964
RADIANT 1.71 cts.
Sparkle Factor: 76 %
Colour: F - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 71518017
RADIANT 1.70 cts.
Sparkle Factor: 80 %
Colour: I - Low White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70505509
RADIANT 1.50 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 78683165
RADIANT 1.51 cts.
Sparkle Factor: 82 %
Colour: I - Low White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71616157
RADIANT 1.51 cts.
Sparkle Factor: 79 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 73819487
RADIANT 1.57 cts.
Sparkle Factor: 76 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74648459
RADIANT 1.52 cts.
Sparkle Factor: 79 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78511980
RADIANT 1.52 cts.
Sparkle Factor: 77 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70457272
RADIANT 1.80 cts.
Sparkle Factor: 76 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70270305
1.5 carat 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 radiant diamond?
A 1.5 carat radiant diamond typically measures about 7.5 x 5.8 mm, based on the stones in our stock today. A round diamond of the same weight measures about 7.3 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 1.5 carat radiant diamond
Radiants come square (ratio up to 1.08) or elongated (1.15 and up); the brilliant faceting hides small inclusions well. Colour 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 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 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 1.5 carat radiant diamond in our stock is $4,137 natural, against $561 lab grown. Compare 1.5 carat radiant lab grown diamonds.
Other sizes
Compare radiant natural diamonds at 1 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 1.5 carat radiant diamond?
A 1.5 carat radiant diamond typically measures about 7.5 x 5.8 mm, based on the stones in our stock today. Exact measurements are on each stone's certificate.
How much does a 1.5 carat radiant natural diamond cost?
Today our 1.5 carat radiant natural diamonds range from $4,137 to $52,189, across 1,635 stones. Colour, clarity, cut and the exact carat weight make the difference.
Should I choose a natural or lab grown 1.5 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 1.5 carat radiant diamond in our stock is $4,137 natural, against $561 lab grown. Both are graded on the same 4Cs and come with a certificate.
What colour and clarity should a 1.5 carat radiant diamond be?
Colour and inclusions start to show more at this size, so G or better and VS2 or better are worth considering, particularly in step cuts.