Elongated Cushion Lab Grown Diamonds
Lab-grown diamond
CUSHION 0.57 cts.
Sparkle Factor: 85 %
Colour: 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 0.51 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: 9678688374
Lab-grown diamond
CUSHION 0.49 cts.
Sparkle Factor: 91 %
Colour: 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 0.40 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: 9376672099
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 88 %
Colour: 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 %
Colour: 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 %
Colour: E - Colourless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9476671931
Lab-grown diamond
CUSHION 0.51 cts.
Sparkle Factor: 90 %
Colour: 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 %
Colour: E - Colourless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9576671960
Lab-grown diamond
CUSHION 0.47 cts.
Sparkle Factor: 85 %
Colour: F - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9375859189
Lab-grown diamond
CUSHION 0.42 cts.
Sparkle Factor: 88 %
Colour: 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 0.55 cts.
Sparkle Factor: 77 %
Colour: I - Low White
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9477895206
Lab-grown diamond
CUSHION 0.50 cts.
Sparkle Factor: 86 %
Colour: E - Colourless
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 %
Colour: E - Colourless
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 %
Colour: E - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: None
Diamond ID: 9576671952
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 86 %
Colour: E - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9375783406
Lab-grown diamond
CUSHION 0.40 cts.
Sparkle Factor: 92 %
Colour: 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 0.43 cts.
Sparkle Factor: 88 %
Colour: 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 0.43 cts.
Sparkle Factor: 88 %
Colour: 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 0.51 cts.
Sparkle Factor: 86 %
Colour: E - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9570895791
Lab-grown diamond
CUSHION 0.50 cts.
Sparkle Factor: 86 %
Colour: E - Colourless
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 %
Colour: E - Colourless
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 %
Colour: D - Best a girl can get
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9574654970
Lab-grown diamond
CUSHION 0.50 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: 9574654998
Lab-grown diamond
CUSHION 0.43 cts.
Sparkle Factor: 90 %
Colour: E - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9370579777
Lab-grown diamond
CUSHION 0.42 cts.
Sparkle Factor: 88 %
Colour: E - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9373719658
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 92 %
Colour: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9377245071
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 92 %
Colour: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9377805099
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9471520277
Lab-grown diamond
CUSHION 0.43 cts.
Sparkle Factor: 89 %
Colour: E - Colourless
Clarity: VVS1 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9471577557
Lab-grown diamond
CUSHION 0.44 cts.
Sparkle Factor: 88 %
Colour: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9472342393
Lab-grown diamond
CUSHION 0.49 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: 9475343484
Lab-grown diamond
CUSHION 0.49 cts.
Sparkle Factor: 88 %
Colour: E - Colourless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9479702787
Lab-grown diamond
CUSHION 0.51 cts.
Sparkle Factor: 85 %
Colour: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9570406302
Lab-grown diamond
CUSHION 0.51 cts.
Sparkle Factor: 86 %
Colour: E - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9572493886
Lab-grown diamond
CUSHION 0.50 cts.
Sparkle Factor: 88 %
Colour: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9573633697
Lab-grown diamond
CUSHION 0.51 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: 9574654928
Lab-grown diamond
CUSHION 0.52 cts.
Sparkle Factor: 86 %
Colour: E - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9574857704
Lab-grown diamond
CUSHION 0.51 cts.
Sparkle Factor: 86 %
Colour: E - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9575859062
Lab-grown diamond
CUSHION 0.51 cts.
Sparkle Factor: 85 %
Colour: F - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9575859195
Lab-grown diamond
CUSHION 0.51 cts.
Sparkle Factor: 85 %
Colour: F - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9578409116
Lab-grown diamond
CUSHION 0.50 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: 9579312201
Lab-grown diamond
CUSHION 0.49 cts.
Sparkle Factor: 86 %
Colour: E - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9370895840
Lab-grown diamond
CUSHION 0.48 cts.
Sparkle Factor: 85 %
Colour: E - Colourless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9372050374
Lab-grown diamond
CUSHION 0.40 cts.
Sparkle Factor: 92 %
Colour: E - Colourless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9373875044
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 88 %
Colour: E - Colourless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9374566805
Lab-grown diamond
CUSHION 0.44 cts.
Sparkle Factor: 90 %
Colour: E - Colourless
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9375768063
Lab-grown diamond
CUSHION 0.42 cts.
Sparkle Factor: 92 %
Colour: E - Colourless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9378606342
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 93 %
Colour: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9470624836
Lab-grown diamond
CUSHION 0.42 cts.
Sparkle Factor: 89 %
Colour: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9471519971
Lab-grown diamond
CUSHION 0.46 cts.
Sparkle Factor: 88 %
Colour: D - Best a girl can get
Clarity: VS1 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9471529540
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 93 %
Colour: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9472077890
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 93 %
Colour: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9473369888
Lab-grown diamond
CUSHION 0.41 cts.
Sparkle Factor: 93 %
Colour: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9475295723
Lab-grown diamond
CUSHION 0.47 cts.
Sparkle Factor: 88 %
Colour: E - Colourless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9475625738
Lab-grown diamond
CUSHION 0.40 cts.
Sparkle Factor: 93 %
Colour: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9477551700
Lab-grown diamond
CUSHION 0.40 cts.
Sparkle Factor: 93 %
Colour: D - Best a girl can get
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 9478305488
Lab-grown diamond
CUSHION 0.54 cts.
Sparkle Factor: 85 %
Colour: E - Colourless
Clarity: VS2 - V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9570895455
Lab-grown diamond
CUSHION 0.50 cts.
Sparkle Factor: 86 %
Colour: F - Colourless
Clarity: VVS2 - V.V.Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 9570895469
Lab-grown diamond
CUSHION 0.52 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: 9571544475
Elongated cushion lab grown diamonds: what to look for
Every stone here has a length-to-width ratio of 1.15 or more and its own photo; 1.25 to 1.35 is the most popular range, and higher ratios give a longer, slimmer stone. Our elongated cushion diamond guide covers the shape in more detail.
Elongated cushion diamond sizes and prices
Carat measures weight, not size. These are the typical measurements and lowest prices of the elongated cushion lab grown diamonds in our stock today, by carat size:
| Carat | Typical size | Available | From |
|---|---|---|---|
| 1 carat | 7.1 x 5.2 mm | 8,379 | £234 |
| 1.5 carat | 8.1 x 5.9 mm | 6,221 | £299 |
| 2 carat | 8.8 x 6.5 mm | 7,258 | £410 |
| 3 carat | 10.0 x 7.5 mm | 4,920 | £518 |
| 5 carat | 11.9 x 8.8 mm | 2,696 | £803 |
Elongated cushion lab grown diamond prices
Today our elongated cushion lab grown diamonds range from £158 to £230,872, across 43,878 stones. Carat weight makes the biggest difference, followed by colour, 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 elongated cushion diamond today is £234 lab grown, against £858 natural. Compare elongated cushion natural diamonds.
Choosing colour and clarity
Up to about 1.5 carats, G or H colour and VS2 or SI1 clarity usually look white and clean to the eye. From 2 carats colour 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 elongated cushion diamond?
A 1 carat elongated cushion diamond typically measures about 7.1 x 5.2 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 elongated cushion lab grown diamond cost?
Today our elongated cushion lab grown diamonds range from £158 to £230,872, across 43,878 stones. Carat weight makes the biggest difference, followed by colour, clarity and cut.
Should I choose a natural or lab grown elongated 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 elongated cushion diamond today is £234 lab grown, against £858 natural. Both are graded on the same 4Cs and come with a certificate.
What colour and clarity should a elongated cushion diamond be?
Every stone here has a length-to-width ratio of 1.15 or more and its own photo; 1.25 to 1.35 is the most popular range, and higher ratios give a longer, slimmer stone. Up to about 1.5 carats, G or H colour and VS2 or SI1 clarity usually look white and clean to the eye. From 2 carats colour and inclusions are easier to see, so G or better and VS2 or better are worth considering.
