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Cushion|Lab Grown|IGI

1.12ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG644498954

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG644498954

Diamond specifications and retailer prices

From £244 GBP
As of November 4, 2026
Save £459 GBP (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £702 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.12ct lab-grown cushion diamond

This 1.12ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG644498954 or 644498954. Listed at 10 retailers as of November 2, 2026, with prices from £244 to £702, a £459 spread on the same certified stone. MOH London lists it at £702. 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

1.12
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644498954
Dimensions6.24 × 6.15 × 3.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.24 mm6.15 mm1.12 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644498954
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £702 GBP|Low: £171 GBP|High: £762 GBP|Avg: £376 GBP|+14.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 8£196 GBP
Retailer 4£244 GBP
Retailer 2£261 GBP
Retailer 10£261 GBP
Retailer 11£272 GBP
Retailer 6£292 GBP
Retailer 9£391 GBP
Retailer 3£430 GBP
Retailer 7£437 GBP
Retailer 5£516 GBP
MOH London£702 GBP

37 data points across 11 retailers

10 retailers£244 GBP to £702 GBP

A
Cheapest Retailer
-
£244 GBP
A
Retailer 2
-
£261 GBP
View
A
Retailer 3
-
£261 GBP
View
A
Retailer 4
-
£272 GBP
View
Retailer 5
-
£292 GBP
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£391 GBP
View
B+
Retailer 7
-
£430 GBP
View
B+
Retailer 8
-
£437 GBP
View
B+
Retailer 9
-
£516 GBP
View
Most Expensive
B
MOH London
644498954 · Nov 2
£702 GBP
View
9 more retailers have this diamond
Prices start from £244 GBPSave up to £459 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
1.12ct Cushion
£244 GBP