1.5 Carat Square Cushion Natural Diamonds
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 76 %
Color: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Very Slight Blue
Diamond ID: 70769710
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 66 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 75831930
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 78 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70938729
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 73 %
Color: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 72256874
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 76 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 73241551
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 74 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 73630985
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 77 %
Color: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70133550
Natural diamond
CUSHION 1.54 cts.
Sparkle Factor: 82 %
Color: F - Colorless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72000800
Natural diamond
CUSHION 1.60 cts.
Sparkle Factor: 80 %
Color: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70404688
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 76 %
Color: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74540681
Natural diamond
CUSHION 1.81 cts.
Sparkle Factor: 77 %
Color: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72154821
Natural diamond
CUSHION 1.53 cts.
Sparkle Factor: 72 %
Color: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Medium Blue
Diamond ID: 70725058
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 72 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 74774216
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 76 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 78924952
Natural diamond
CUSHION 1.53 cts.
Sparkle Factor: 79 %
Color: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74831979
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 71 %
Color: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Medium Blue
Diamond ID: 70004491
Natural diamond
CUSHION 1.52 cts.
Sparkle Factor: 74 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 72172717
Natural diamond
CUSHION 1.71 cts.
Sparkle Factor: 61 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: Strong Blue
Diamond ID: 76752074
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 79 %
Color: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 73538030
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 72 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 74046474
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 79 %
Color: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70971751
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 78 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77428733
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 77 %
Color: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72878516
Natural diamond
CUSHION 1.56 cts.
Sparkle Factor: 79 %
Color: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70828089
Natural diamond
CUSHION 1.82 cts.
Sparkle Factor: 77 %
Color: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71481330
Natural diamond
CUSHION 1.52 cts.
Sparkle Factor: 79 %
Color: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71327709
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 82 %
Color: F - Colorless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72048708
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 81 %
Color: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77480586
Natural diamond
CUSHION 1.59 cts.
Sparkle Factor: 73 %
Color: J - Slightly Tinted
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 78633823
Natural diamond
CUSHION 1.60 cts.
Sparkle Factor: 73 %
Color: J - Slightly Tinted
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Medium Blue
Diamond ID: 70999296
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 80 %
Color: J - Slightly Tinted
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 79829396
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 79 %
Color: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70388018
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 79 %
Color: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72697733
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 77 %
Color: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 75402385
Natural diamond
CUSHION 1.54 cts.
Sparkle Factor: 81 %
Color: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 75942457
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 79 %
Color: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76540068
Natural diamond
CUSHION 1.52 cts.
Sparkle Factor: 84 %
Color: E - Colorless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70505460
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 78 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 75488594
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 81 %
Color: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78251636
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 73 %
Color: I - Low White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 73112903
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 80 %
Color: H - White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 72011398
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 79 %
Color: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77379348
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 82 %
Color: J - Slightly Tinted
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74947231
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 78 %
Color: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 75673935
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 79 %
Color: F - Colorless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76757849
Natural diamond
CUSHION 1.52 cts.
Sparkle Factor: 79 %
Color: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79447332
Natural diamond
CUSHION 1.52 cts.
Sparkle Factor: 82 %
Color: J - Slightly Tinted
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79676886
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 75 %
Color: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 73131631
Natural diamond
CUSHION 1.70 cts.
Sparkle Factor: 76 %
Color: J - Slightly Tinted
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70885802
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 76 %
Color: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76506849
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 77 %
Color: H - White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76757863
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 81 %
Color: J - Slightly Tinted
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79331739
Natural diamond
CUSHION 1.50 cts.
Sparkle Factor: 77 %
Color: I - Low White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 78577284
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 79 %
Color: J - Slightly Tinted
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71069912
Natural diamond
CUSHION 1.52 cts.
Sparkle Factor: 81 %
Color: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 73944401
Natural diamond
CUSHION 1.81 cts.
Sparkle Factor: 80 %
Color: F - Colorless
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 72116664
Natural diamond
CUSHION 1.51 cts.
Sparkle Factor: 81 %
Color: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78236980
Natural diamond
CUSHION 1.71 cts.
Sparkle Factor: 78 %
Color: H - White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71436971
Natural diamond
CUSHION 1.71 cts.
Sparkle Factor: 80 %
Color: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72259457
Natural diamond
CUSHION 1.70 cts.
Sparkle Factor: 76 %
Color: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 75681710
1.5 carat square cushion 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 cushion diamond?
A 1.5 carat square cushion diamond typically measures about 6.6 x 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 cushion 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 cushion diamond
Every stone here has a length-to-width ratio of 1.08 or under, so it faces up as a square; the photo shows whether it has classic broad facets or a busier crushed-ice sparkle, which the certificate does not grade. 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 cushion 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 cushion diamond in our stock is $2,410 natural, against $418 lab grown. Compare 1.5 carat square cushion lab grown diamonds.
Other sizes
Compare square cushion natural diamonds at 1 carat, 2 carat, 3 carat or 5 carat. Or browse every square cushion natural 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 cushion diamond?
A 1.5 carat square cushion diamond typically measures about 6.6 x 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 cushion natural diamond cost?
Today our 1.5 carat square cushion natural diamonds range from $2,410 to $37,986, across 1,533 stones. Color, clarity, cut and the exact carat weight make the difference.
Should I choose a natural or lab grown 1.5 carat square cushion 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 cushion diamond in our stock is $2,410 natural, against $418 lab grown. Both are graded on the same 4Cs and come with a certificate.
What color and clarity should a 1.5 carat square cushion 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.
