3 Carat Square Cushion Lab Grown Diamonds
Lab-grown diamond
CUSHION 3.07 cts.
Sparkle Factor: 87 %
Color: E - Colorless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9971639298
Lab-grown diamond
CUSHION 3.10 cts.
Sparkle Factor: 87 %
Color: E - Colorless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9971097778
Lab-grown diamond
CUSHION 3.08 cts.
Sparkle Factor: 86 %
Color: F - Colorless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9974113703
Lab-grown diamond
CUSHION 3.32 cts.
Sparkle Factor: 87 %
Color: E - Colorless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977087964
Lab-grown diamond
CUSHION 3.06 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977539862
Lab-grown diamond
CUSHION 3.20 cts.
Sparkle Factor: 86 %
Color: F - Colorless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9979131762
Lab-grown diamond
CUSHION 3.09 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970579412
Lab-grown diamond
CUSHION 3.06 cts.
Sparkle Factor: 87 %
Color: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975256187
Lab-grown diamond
CUSHION 3.01 cts.
Sparkle Factor: 86 %
Color: H - White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9973104190
Lab-grown diamond
CUSHION 3.09 cts.
Sparkle Factor: 87 %
Color: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9978370770
Lab-grown diamond
CUSHION 3.07 cts.
Sparkle Factor: 87 %
Color: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970427680
Lab-grown diamond
CUSHION 3.04 cts.
Sparkle Factor: 87 %
Color: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9971897233
Lab-grown diamond
CUSHION 3.01 cts.
Sparkle Factor: 87 %
Color: H - White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9972602366
Lab-grown diamond
CUSHION 3.01 cts.
Sparkle Factor: 87 %
Color: H - White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9972602373
Lab-grown diamond
CUSHION 3.04 cts.
Sparkle Factor: 87 %
Color: H - White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9971028638
Lab-grown diamond
CUSHION 3.04 cts.
Sparkle Factor: 84 %
Color: G - Very White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9971473645
Lab-grown diamond
CUSHION 3.04 cts.
Sparkle Factor: 87 %
Color: H - White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9972602296
Lab-grown diamond
CUSHION 3.13 cts.
Sparkle Factor: 86 %
Color: H - White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9979558140
Lab-grown diamond
CUSHION 3.01 cts.
Sparkle Factor: 87 %
Color: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9979881840
Lab-grown diamond
CUSHION 3.17 cts.
Sparkle Factor: 86 %
Color: H - White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9971589654
Lab-grown diamond
CUSHION 3.02 cts.
Sparkle Factor: 87 %
Color: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9972602381
Lab-grown diamond
CUSHION 3.02 cts.
Sparkle Factor: 86 %
Color: H - White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9973719202
Lab-grown diamond
CUSHION 3.05 cts.
Sparkle Factor: 87 %
Color: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9976316724
Lab-grown diamond
CUSHION 3.14 cts.
Sparkle Factor: 87 %
Color: H - White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9972602261
Lab-grown diamond
CUSHION 3.15 cts.
Sparkle Factor: 87 %
Color: H - White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970807228
Lab-grown diamond
CUSHION 3.19 cts.
Sparkle Factor: 87 %
Color: H - White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9971034000
Lab-grown diamond
CUSHION 3.04 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9979559022
Lab-grown diamond
CUSHION 3.02 cts.
Sparkle Factor: 86 %
Color: H - White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970370093
Lab-grown diamond
CUSHION 3.06 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975857613
Lab-grown diamond
CUSHION 3.03 cts.
Sparkle Factor: 87 %
Color: F - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9972547675
Lab-grown diamond
CUSHION 3.04 cts.
Sparkle Factor: 87 %
Color: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9971232549
Lab-grown diamond
CUSHION 3.12 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9972602268
Lab-grown diamond
CUSHION 3.33 cts.
Sparkle Factor: 86 %
Color: G - Very White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977087011
Lab-grown diamond
CUSHION 3.02 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970821648
Lab-grown diamond
CUSHION 3.04 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975348237
Lab-grown diamond
CUSHION 3.02 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9973007540
Lab-grown diamond
CUSHION 3.07 cts.
Sparkle Factor: 82 %
Color: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9971608898
Lab-grown diamond
CUSHION 3.23 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9972177472
Lab-grown diamond
CUSHION 3.03 cts.
Sparkle Factor: 89 %
Color: E - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9974994695
Lab-grown diamond
CUSHION 3.04 cts.
Sparkle Factor: 87 %
Color: G - Very White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975284391
Lab-grown diamond
CUSHION 3.08 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9978483891
Lab-grown diamond
CUSHION 3.02 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9974697432
Lab-grown diamond
CUSHION 3.06 cts.
Sparkle Factor: 87 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9977804273
Lab-grown diamond
CUSHION 3.32 cts.
Sparkle Factor: 87 %
Color: F - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9974931667
Lab-grown diamond
CUSHION 3.18 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: 9975911585
Lab-grown diamond
CUSHION 3.01 cts.
Sparkle Factor: 88 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975839750
Lab-grown diamond
CUSHION 3.08 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977230105
Lab-grown diamond
CUSHION 3.00 cts.
Sparkle Factor: 90 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9974435415
Lab-grown diamond
CUSHION 3.03 cts.
Sparkle Factor: 87 %
Color: H - White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975591929
Lab-grown diamond
CUSHION 3.00 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9970663643
Lab-grown diamond
CUSHION 3.12 cts.
Sparkle Factor: 84 %
Color: I - Low White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9978596172
Lab-grown diamond
CUSHION 3.03 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9972704068
Lab-grown diamond
CUSHION 3.01 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9975234067
Lab-grown diamond
CUSHION 3.01 cts.
Sparkle Factor: 86 %
Color: I - Low White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977297497
Lab-grown diamond
CUSHION 3.01 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9978624023
Lab-grown diamond
CUSHION 3.01 cts.
Sparkle Factor: 88 %
Color: F - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9971546610
Lab-grown diamond
CUSHION 3.00 cts.
Sparkle Factor: 89 %
Color: G - Very White
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9974703361
Lab-grown diamond
CUSHION 3.07 cts.
Sparkle Factor: 89 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977482483
Lab-grown diamond
CUSHION 3.24 cts.
Sparkle Factor: 87 %
Color: F - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9972181014
Lab-grown diamond
CUSHION 3.01 cts.
Sparkle Factor: 87 %
Color: F - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9977741322
3 carat square cushion diamonds: what to expect
A 3 carat diamond is a true statement stone, noticeably larger than most engagement ring diamonds. It looks about 44% wider than a 1 carat stone of the same shape and shows around 108% more surface from above, even though it weighs three times as much.
How big is a 3 carat square cushion diamond?
A 3 carat square cushion diamond typically measures about 8.4 x 8.2 mm, based on the stones in our stock today. A round diamond of the same weight measures about 9.3 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 3 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. At three carats color and clarity are easy to see, so we suggest F or G color and VS2 or better clarity, with VS1 or better for step cuts.
3 carat square cushion diamond prices
Prices rise steeply with weight at this size, so comparing stones across the band, and between natural and lab grown, makes a real difference.
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 3 carat square cushion diamond in our stock is $804 lab grown, against $17,033 natural. Compare 3 carat square cushion natural diamonds.
Other sizes
Compare square cushion lab grown diamonds at 1 carat, 1.5 carat, 2 carat or 5 carat. Or browse every square cushion 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 3 carat square cushion diamond?
A 3 carat square cushion diamond typically measures about 8.4 x 8.2 mm, based on the stones in our stock today. Exact measurements are on each stone's certificate.
How much does a 3 carat square cushion lab grown diamond cost?
Today our 3 carat square cushion lab grown diamonds range from $804 to $50,025, across 3,003 stones. Color, clarity, cut and the exact carat weight make the difference.
Should I choose a natural or lab grown 3 carat square cushion 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 3 carat square cushion diamond in our stock is $804 lab grown, against $17,033 natural. Both are graded on the same 4Cs and come with a certificate.
What color and clarity should a 3 carat square cushion diamond be?
At three carats color and clarity are easy to see, so we suggest F or G color and VS2 or better clarity, with VS1 or better for step cuts.
