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Cushion|Lab Grown|IGI

4.06ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG584382317

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG584382317

Diamond specifications and retailer prices

From £365 GBP
As of October 30, 2026
Save £1,245 GBP (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,609 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 4.06ct lab-grown cushion diamond

This 4.06ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG584382317 or 584382317. Listed at 9 retailers as of October 29, 2026, with prices from £365 to £1,609, a £1,245 spread on the same certified stone. MOH London lists it at £1,609. 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

4.06
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG584382317
Dimensions10.73 × 8.74 × 5.82 mm
L/W Ratio1.23
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
10.73 mm8.74 mm4.06 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG584382317
Side View
Table 62.0%Crown 32.1°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 66.6%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: £1,609 GBP|Low: £365 GBP|High: £4,485 GBP|Avg: £1,451 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 6£365 GBP
Retailer 9£478 GBP
Retailer 7£541 GBP
Retailer 2£658 GBP
Retailer 12£681 GBP
Retailer 8£691 GBP
Retailer 5£717 GBP
Retailer 10£1,046 GBP
MOH London£1,609 GBP
Retailer 11£1,746 GBP
Retailer 3£3,832 GBP
Retailer 4£4,485 GBP

4 data points across 12 retailers

9 retailers£365 GBP to £1,609 GBP

A
Cheapest Retailer
-
£365 GBP
A
Retailer 2
-
£478 GBP
HK$5,000 HKD
View
A
Retailer 3
-
£541 GBP
$725 USD
View
A
Retailer 4
-
£658 GBP
€840 EUR
View
B+
Retailer 5
-
£681 GBP
$913 USD
View
A
Retailer 6
-
£691 GBP
$926 USD
View
A
Retailer 7
-
£717 GBP
View
B+
Retailer 8
-
£1,046 GBP
$1,401 USD
View
Most Expensive
B
MOH London
LG584382317 · Oct 29
£1,609 GBP
View
8 more retailers have this diamond
Prices start from £365 GBPSave up to £1,245 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
4.06ct Cushion
£365 GBP