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Cushion|Lab Grown|IGI

1.56ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG613383062

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG613383062

Diamond specifications and retailer prices

From £293 GBP
€374 EUR
As of November 2, 2026
Save £589 GBP (67%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £882 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.56ct lab-grown cushion diamond

This 1.56ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG613383062 or 613383062. Listed at 9 retailers as of November 1, 2026, with prices from £293 to £882, a £589 spread on the same certified stone. MOH London lists it at £882. 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

1.56
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG613383062
Dimensions6.84 × 6.72 × 4.39 mm
L/W Ratio1.02
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
6.84 mm6.72 mm1.56 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG613383062
Side View
Table 62.0%Crown 36.3°Girdle: MED-STKPavilion 39°Culet: NoneDepth 65.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: £882 GBP|Low: £163 GBP|High: £892 GBP|Avg: £473 GBP|+15.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8£189 GBP
Retailer 7£243 GBP
Retailer 4£293 GBP
Retailer 11£326 GBP
Retailer 2£347 GBP
Retailer 10£365 GBP
Retailer 9£437 GBP
Retailer 6£645 GBP
Retailer 3£718 GBP
Retailer 5£760 GBP
MOH London£882 GBP

38 data points across 11 retailers

9 retailers£293 GBP to £882 GBP

Retailer 1
-
£189 GBP
$253 USD
Price last confirmed 21 days ago
A
Retailer 2
-
£293 GBP
€374 EUR
View
B+
Retailer 3
-
£326 GBP
$437 USD
View
A
Retailer 4
-
£347 GBP
View
A
Retailer 5
-
£365 GBP
$490 USD
View
A
Retailer 6
-
£437 GBP
$586 USD
View
B
Retailer 7
-
£718 GBP
$964 USD
View
B+
Retailer 8
-
£760 GBP
$1,020 USD
View
Most Expensive
B
MOH London
LG613383062 · Nov 1
£882 GBP
View
8 more retailers have this diamond
Prices start from £293 GBPSave up to £589 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
1.56ct Cushion
£293 GBP