1.5 Carat Square Radiant Natural Diamonds
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 1.50 cts.
Sparkle Factor: 80 %
Colour: F - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 77615027
RADIANT 1.50 cts.
Sparkle Factor: 81 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 73156432
RADIANT 1.50 cts.
Sparkle Factor: 72 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 79493033
RADIANT 1.70 cts.
Sparkle Factor: 73 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 72224522
RADIANT 1.51 cts.
Sparkle Factor: 60 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: Medium Blue
Diamond ID: 77604256
RADIANT 1.50 cts.
Sparkle Factor: 78 %
Colour: I - Low White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 75272136
RADIANT 1.52 cts.
Sparkle Factor: 82 %
Colour: I - Low White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 77586883
RADIANT 1.51 cts.
Sparkle Factor: 86 %
Colour: I - Low White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72451954
RADIANT 1.50 cts.
Sparkle Factor: 87 %
Colour: I - Low White
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78282707
RADIANT 1.51 cts.
Sparkle Factor: 87 %
Colour: I - Low White
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 75216634
RADIANT 1.50 cts.
Sparkle Factor: 75 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 74543169
RADIANT 1.59 cts.
Sparkle Factor: 87 %
Colour: I - Low White
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72092481
RADIANT 1.50 cts.
Sparkle Factor: 72 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: None
Diamond ID: 74263208
RADIANT 1.50 cts.
Sparkle Factor: 73 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: Medium Blue
Diamond ID: 75039988
RADIANT 1.51 cts.
Sparkle Factor: 77 %
Colour: H - White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 74210215
RADIANT 1.50 cts.
Sparkle Factor: 79 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74551329
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: 77998313
RADIANT 1.50 cts.
Sparkle Factor: 82 %
Colour: F - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 72452658
RADIANT 1.50 cts.
Sparkle Factor: 87 %
Colour: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78799153
RADIANT 1.53 cts.
Sparkle Factor: 84 %
Colour: H - White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 72550206
RADIANT 1.51 cts.
Sparkle Factor: 85 %
Colour: F - Colourless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 78650478
RADIANT 1.70 cts.
Sparkle Factor: 84 %
Colour: I - Low White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79822597
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: 79779150
RADIANT 1.61 cts.
Sparkle Factor: 82 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70930396
RADIANT 1.50 cts.
Sparkle Factor: 74 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 75360595
RADIANT 1.60 cts.
Sparkle Factor: 74 %
Colour: F - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: None
Diamond ID: 72458597
RADIANT 1.71 cts.
Sparkle Factor: 82 %
Colour: I - Low White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78286534
RADIANT 1.53 cts.
Sparkle Factor: 73 %
Colour: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Strong Blue
Diamond ID: 78268935
RADIANT 1.50 cts.
Sparkle Factor: 90 %
Colour: F - Colourless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79033646
RADIANT 1.53 cts.
Sparkle Factor: 84 %
Colour: H - White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77431783
RADIANT 1.52 cts.
Sparkle Factor: 72 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: None
Diamond ID: 73931863
RADIANT 1.81 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: None
Diamond ID: 77710477
RADIANT 1.70 cts.
Sparkle Factor: 82 %
Colour: I - Low White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 79268406
RADIANT 1.90 cts.
Sparkle Factor: 79 %
Colour: J - Slightly Tinted
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 72730017
RADIANT 1.50 cts.
Sparkle Factor: 86 %
Colour: F - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78998250
RADIANT 1.69 cts.
Sparkle Factor: 77 %
Colour: F - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 70852767
RADIANT 1.54 cts.
Sparkle Factor: 70 %
Colour: F - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: Medium Blue
Diamond ID: 78448666
RADIANT 1.50 cts.
Sparkle Factor: 84 %
Colour: E - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 77573168
RADIANT 1.70 cts.
Sparkle Factor: 72 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Good
Fluorescence: Faint Blue
Diamond ID: 71167094
RADIANT 1.92 cts.
Sparkle Factor: 84 %
Colour: I - Low White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74524554
RADIANT 1.60 cts.
Sparkle Factor: 86 %
Colour: E - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74395543
RADIANT 1.51 cts.
Sparkle Factor: 75 %
Colour: I - Low White
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 74281353
RADIANT 1.67 cts.
Sparkle Factor: 78 %
Colour: I - Low White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70857584
RADIANT 1.50 cts.
Sparkle Factor: 67 %
Colour: H - White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: Strong Blue
Diamond ID: 73682166
RADIANT 1.50 cts.
Sparkle Factor: 84 %
Colour: F - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74208093
RADIANT 1.90 cts.
Sparkle Factor: 79 %
Colour: E - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 71810342
RADIANT 1.71 cts.
Sparkle Factor: 75 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 73415039
RADIANT 1.70 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79729434
RADIANT 1.53 cts.
Sparkle Factor: 86 %
Colour: F - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74108609
RADIANT 1.51 cts.
Sparkle Factor: 76 %
Colour: E - Colourless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: Faint Blue
Diamond ID: 70510793
RADIANT 1.63 cts.
Sparkle Factor: 77 %
Colour: F - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 75205579
RADIANT 1.63 cts.
Sparkle Factor: 86 %
Colour: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 73563183
RADIANT 1.82 cts.
Sparkle Factor: 87 %
Colour: F - Colourless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77586312
RADIANT 1.60 cts.
Sparkle Factor: 82 %
Colour: G - Very White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 75146045
RADIANT 1.94 cts.
Sparkle Factor: 65 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: Medium Blue
Diamond ID: 77897810
RADIANT 1.50 cts.
Sparkle Factor: 85 %
Colour: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 75736325
RADIANT 1.50 cts.
Sparkle Factor: 87 %
Colour: E - Colourless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 78437222
RADIANT 1.70 cts.
Sparkle Factor: 80 %
Colour: F - Colourless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 78779514
RADIANT 1.50 cts.
Sparkle Factor: 85 %
Colour: E - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Good
Fluorescence: None
Diamond ID: 73029928
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 6.4 mm, based on the stones in our stock today. A round diamond of the same weight measures about 7.3 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. 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 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 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 square radiant diamond in our stock is $6,290 natural, against $588 lab grown. Compare 1.5 carat square radiant lab grown diamonds.
Other sizes
Compare square 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 square radiant diamond?
A 1.5 carat square radiant diamond typically measures about 6.4 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 natural diamond cost?
Today our 1.5 carat square radiant natural diamonds range from $6,290 to $41,798, across 91 stones. Colour, 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 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 square radiant diamond in our stock is $6,290 natural, against $588 lab grown. Both are graded on the same 4Cs and come with a certificate.
What colour and clarity should a 1.5 carat square 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.
