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Cushion|Lab Grown|IGI

1.35ct D FL Cushion Lab Grown Diamond

EX • D/FL

Diamond specifications and retailer prices

From £512 GBP
$687 USD
As of November 2, 2026
Save £1,081 GBP (68%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,592 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.35ct lab-grown cushion diamond

This 1.35ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI. Listed at 2 retailers as of October 31, 2026, with prices from £512 to £1,592, a £1,081 spread on the same certified stone. Blue Nile lists it at £1,592. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions6.37 × 6.30 × 4.03 mm
L/W Ratio1.01
Top View
6.37 mm6.30 mm1.35 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: £1,592 GBP|Low: £512 GBP|High: £2,102 GBP|Avg: £1,399 GBP|-2.9%
Blue Nile
Retailer 2
Retailer 3
October 30, 2026
Retailer 2£512 GBP
Blue Nile£1,592 GBP
Retailer 3£2,102 GBP

5 data points across 3 retailers

2 retailers£512 GBP to £1,592 GBP

A
Cheapest Retailer
-
£512 GBP
$687 USD
Most Expensive
B
Blue Nile
30353528 · Oct 31
£1,592 GBP
$2,137 USD
View
1 more retailer has this diamond
Prices start from £512 GBPSave up to £1,081 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.35ct Cushion
£512 GBP