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Cushion|Lab Grown|IGI

4.09ct E SI2 Cushion Lab Grown Diamond

ID • E/SI2 • IGI LG743561585

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG743561585

Diamond specifications and retailer prices

From $551 CAD
£311 GBP
As of October 27, 2026
Save $3,039 CAD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,590 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.09ct lab-grown cushion diamond

This 4.09ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG743561585 or 743561585. Listed at 12 retailers as of October 27, 2026, with prices from $551 to $3,590, a $3,039 spread on the same certified stone. Brilliant Earth lists it at $3,590. 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

4.09
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743561585
Dimensions9.05 × 8.98 × 5.90 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.05 mm8.98 mm4.09 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743561585
Side View
Table 64.0%Crown 35.6°Girdle: MED-THKPavilion 34.9°Culet: NoneDepth 65.7%

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 27
Current: $3,590 CAD|Low: $549 CAD|High: $6,775 CAD|Avg: $1,823 CAD|-47.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 8$551 CAD
Retailer 5$576 CAD
Retailer 13$697 CAD
Retailer 6$972 CAD
Retailer 12$1,017 CAD
Retailer 4$1,134 CAD
Retailer 9$1,142 CAD
Retailer 2$1,551 CAD
Retailer 3$1,841 CAD
Retailer 7$1,998 CAD
Retailer 10$2,491 CAD
Retailer 11$3,234 CAD
Brilliant Earth$3,590 CAD

44 data points across 13 retailers

12 retailers$551 CAD to $3,590 CAD

A
Cheapest Retailer
-
$551 CAD
£311 GBP
A
Retailer 2
-
$697 CAD
HK$3,900 HKD
View
A
Retailer 3
-
$972 CAD
€663 EUR
View
B+
Retailer 4
-
$1,017 CAD
$728 USD
View
A
Retailer 5
-
$1,134 CAD
$812 USD
View
A
Retailer 6
-
$1,142 CAD
£644 GBP
View
B+
Retailer 7
-
$1,551 CAD
$1,110 USD
View
B+
Retailer 8
-
$1,841 CAD
$1,318 USD
View
B+
Retailer 9
-
$1,998 CAD
SGD 1,933 SGD
View
B+
Retailer 10
-
$2,491 CAD
£1,404 GBP
View
B
Retailer 11
-
$3,234 CAD
$2,315 USD
View
Most Expensive
B
Brilliant Earth
16748013A · Oct 30
$3,590 CAD
$2,570 USD
View
11 more retailers have this diamond
Prices start from $551 CADSave up to $3,039 CAD

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
4.09ct Cushion
$551 CAD