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Cushion|Lab Grown|IGI

1.40ct F SI2 Cushion Lab Grown Diamond

ID • F/SI2 • IGI LG594358985

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG594358985

Diamond specifications and retailer prices

From €271 EUR
£238 GBP
As of October 27, 2026
4 retailers carry this diamond
Most expensive: €947 EUR at MOH London · As of October 25, 2026
View at MOH London

About this 1.4ct lab-grown cushion diamond

This 1.4ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG594358985 or 594358985. Listed at 4 retailers as of October 27, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.40
Carat
F
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594358985
Dimensions8.13 × 5.65 × 3.86 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.13 mm5.65 mm1.40 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594358985
Side View
Table 61.0%Crown 33.9°Girdle: MED-STKPavilion 36°Culet: NoneDepth 68.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: €947 EUR|Low: €270 EUR|High: €1,164 EUR|Avg: €616 EUR|-5.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 27, 2026
Retailer 2€271 EUR
Retailer 4€329 EUR
Retailer 8€381 EUR
Retailer 7€466 EUR
Retailer 5€547 EUR
Retailer 3€555 EUR
Retailer 6€671 EUR
MOH London€947 EUR
Retailer 9€1,164 EUR

19 data points across 9 retailers

4 retailers

A
Cheapest Retailer
-
€271 EUR
£238 GBP
Retailer 2
-
€329 EUR
$368 USD
View
Price last confirmed 7 days ago
Retailer 3
-
€555 EUR
$620 USD
View
Price last confirmed 11 days ago
Most Expensive
MOH London
LG594358985 · Oct 25
€947 EUR
£833 GBP
View
Price last confirmed 8 days ago
3 more retailers have this diamond
Prices start from €271 EUR

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
1.40ct Cushion
€271 EUR