Cushion Lab Grown Diamonds
Lab-grown diamond
CUSHION 0.40 cts.
Sparkle Factor: 83 %
Color: E - Colorless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9572451389
Lab-grown diamond
CUSHION 0.57 cts.
Sparkle Factor: 85 %
Color: D - Best a girl can get
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9678242558
Lab-grown diamond
CUSHION 0.45 cts.
Sparkle Factor: 86 %
Color: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9579579440
Lab-grown diamond
CUSHION 0.51 cts.
Sparkle Factor: 86 %
Color: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9678688374
Lab-grown diamond
CUSHION 0.47 cts.
Sparkle Factor: 85 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9576671938
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 80 %
Color: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9479273247
Lab-grown diamond
CUSHION 0.48 cts.
Sparkle Factor: 85 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9576671945
Lab-grown diamond
CUSHION 0.46 cts.
Sparkle Factor: 80 %
Color: H - White
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9279304936
Lab-grown diamond
CUSHION 0.40 cts.
Sparkle Factor: 86 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9376676467
Lab-grown diamond
CUSHION 0.46 cts.
Sparkle Factor: 85 %
Color: E - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9471520291
Lab-grown diamond
CUSHION 0.45 cts.
Sparkle Factor: 85 %
Color: E - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9475225884
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 88 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9478650189
Lab-grown diamond
CUSHION 0.40 cts.
Sparkle Factor: 89 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9571314469
Lab-grown diamond
CUSHION 0.49 cts.
Sparkle Factor: 91 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9573434806
Lab-grown diamond
CUSHION 0.42 cts.
Sparkle Factor: 83 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9371329554
Lab-grown diamond
CUSHION 0.40 cts.
Sparkle Factor: 86 %
Color: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9376672099
Lab-grown diamond
CUSHION 0.44 cts.
Sparkle Factor: 88 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9475213669
Lab-grown diamond
CUSHION 0.44 cts.
Sparkle Factor: 88 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9476680415
Lab-grown diamond
CUSHION 0.52 cts.
Sparkle Factor: 86 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9675213291
Lab-grown diamond
CUSHION 0.66 cts.
Sparkle Factor: 82 %
Color: F - Colorless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9679714526
Lab-grown diamond
CUSHION 0.43 cts.
Sparkle Factor: 86 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9372342379
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 88 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9471529565
Lab-grown diamond
CUSHION 0.49 cts.
Sparkle Factor: 86 %
Color: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9472342470
Lab-grown diamond
CUSHION 0.42 cts.
Sparkle Factor: 82 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9476671931
Lab-grown diamond
CUSHION 0.49 cts.
Sparkle Factor: 85 %
Color: E - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9479314287
Lab-grown diamond
CUSHION 0.44 cts.
Sparkle Factor: 88 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9479579468
Lab-grown diamond
CUSHION 0.45 cts.
Sparkle Factor: 83 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9479709704
Lab-grown diamond
CUSHION 0.51 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: 9571522552
Lab-grown diamond
CUSHION 0.51 cts.
Sparkle Factor: 82 %
Color: E - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9576671960
Lab-grown diamond
CUSHION 0.40 cts.
Sparkle Factor: 91 %
Color: D - Best a girl can get
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9577859237
Lab-grown diamond
CUSHION 0.53 cts.
Sparkle Factor: 82 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9676671974
Lab-grown diamond
CUSHION 0.91 cts.
Sparkle Factor: 83 %
Color: E - Colorless
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9878567360
Lab-grown diamond
CUSHION 0.47 cts.
Sparkle Factor: 85 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9375859189
Lab-grown diamond
CUSHION 0.47 cts.
Sparkle Factor: 85 %
Color: F - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9379312531
Lab-grown diamond
CUSHION 0.47 cts.
Sparkle Factor: 88 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9470652100
Lab-grown diamond
CUSHION 0.42 cts.
Sparkle Factor: 88 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9471577536
Lab-grown diamond
CUSHION 0.42 cts.
Sparkle Factor: 88 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9476672120
Lab-grown diamond
CUSHION 0.55 cts.
Sparkle Factor: 77 %
Color: I - Low White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9477895206
Lab-grown diamond
CUSHION 0.44 cts.
Sparkle Factor: 88 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9478650203
Lab-grown diamond
CUSHION 0.49 cts.
Sparkle Factor: 86 %
Color: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9479596660
Lab-grown diamond
CUSHION 0.45 cts.
Sparkle Factor: 89 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9571244267
Lab-grown diamond
CUSHION 0.50 cts.
Sparkle Factor: 86 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9574654956
Lab-grown diamond
CUSHION 0.51 cts.
Sparkle Factor: 85 %
Color: E - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9574858216
Lab-grown diamond
CUSHION 0.50 cts.
Sparkle Factor: 80 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9576671952
Lab-grown diamond
CUSHION 0.46 cts.
Sparkle Factor: 86 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9372342413
Lab-grown diamond
CUSHION 0.52 cts.
Sparkle Factor: 78 %
Color: J - Slightly Tinted
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9375623050
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 86 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9375783406
Lab-grown diamond
CUSHION 0.46 cts.
Sparkle Factor: 85 %
Color: E - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9379596653
Lab-grown diamond
CUSHION 0.40 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: 9379989620
Lab-grown diamond
CUSHION 0.40 cts.
Sparkle Factor: 89 %
Color: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9471244252
Lab-grown diamond
CUSHION 0.43 cts.
Sparkle Factor: 88 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9472342357
Lab-grown diamond
CUSHION 0.46 cts.
Sparkle Factor: 88 %
Color: E - Colorless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9472342421
Lab-grown diamond
CUSHION 0.43 cts.
Sparkle Factor: 88 %
Color: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9474566784
Lab-grown diamond
CUSHION 0.48 cts.
Sparkle Factor: 86 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9479313965
Lab-grown diamond
CUSHION 0.50 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: 9570379072
Lab-grown diamond
CUSHION 0.51 cts.
Sparkle Factor: 86 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9570895791
Lab-grown diamond
CUSHION 0.51 cts.
Sparkle Factor: 85 %
Color: E - Colorless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9572342518
Lab-grown diamond
CUSHION 0.50 cts.
Sparkle Factor: 86 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9572493858
Lab-grown diamond
CUSHION 0.50 cts.
Sparkle Factor: 86 %
Color: E - Colorless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9572493900
Lab-grown diamond
CUSHION 0.50 cts.
Sparkle Factor: 86 %
Color: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9574654970
Cushion lab grown diamonds: what to look for
Decide between a square cushion (ratio up to 1.08) and an elongated cushion (1.15 and up) before comparing grades. Our cushion diamond guide covers the shape in more detail.
Cushion diamond sizes and prices
Carat measures weight, not size. These are the typical measurements and lowest prices of the cushion lab grown diamonds in our stock today, by carat size:
| Carat | Typical size | Available | From |
|---|---|---|---|
| 1 carat | 6.7 x 5.4 mm | 11,945 | $307 |
| 1.5 carat | 7.5 x 6.2 mm | 10,552 | $400 |
| 2 carat | 8.3 x 6.8 mm | 10,995 | $520 |
| 3 carat | 9.3 x 7.8 mm | 8,074 | $693 |
| 5 carat | 11.1 x 9.1 mm | 4,320 | $1,074 |
Cushion lab grown diamond prices
Today our cushion lab grown diamonds range from $178 to $311,790, across 67,537 stones. Carat weight makes the biggest difference, followed by color, clarity and cut. Prices step up at the whole and half carat marks, so a stone just over 1.00, 1.50 or 2.00 carats gives the size for the smallest 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. From one carat up, our lowest priced cushion diamond today is $307 lab grown, against $1,007 natural. Compare cushion natural diamonds.
Choosing color and clarity
Up to about 1.5 carats, G or H color and VS2 or SI1 clarity usually look white and clean to the eye. From 2 carats color and inclusions are easier to see, so G or better and VS2 or better are worth considering.
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 carat cushion diamond?
A 1 carat cushion diamond typically measures about 6.7 x 5.4 mm, based on the stones in our stock today. Carat measures weight, not size, so exact measurements are on each stone's certificate.
How much does a cushion lab grown diamond cost?
Today our cushion lab grown diamonds range from $178 to $311,790, across 67,537 stones. Carat weight makes the biggest difference, followed by color, clarity and cut.
Should I choose a natural or lab grown 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. From one carat up, our lowest priced cushion diamond today is $307 lab grown, against $1,007 natural. Both are graded on the same 4Cs and come with a certificate.
What color and clarity should a cushion diamond be?
Decide between a square cushion (ratio up to 1.08) and an elongated cushion (1.15 and up) before comparing grades. Up to about 1.5 carats, G or H color and VS2 or SI1 clarity usually look white and clean to the eye. From 2 carats color and inclusions are easier to see, so G or better and VS2 or better are worth considering.
