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Cushion|Lab Grown|IGI

4.00ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG794662539

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG794662539

Diamond specifications and retailer prices

From $1,145 CAD
$820 USD
As of October 29, 2026
Save $3,283 CAD (74%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,428 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4ct lab-grown cushion diamond

This 4ct 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 LG794662539 or 794662539. Listed at 8 retailers as of October 29, 2026, with prices from $1,145 to $4,428, a $3,283 spread on the same certified stone. Brilliant Earth lists it at $4,428. 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

4.00
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794662539
Dimensions10.92 × 8.22 × 5.66 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.92 mm8.22 mm4.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794662539
Side View
Table 49.0%Crown 38.2°Girdle: STK-THKPavilion 39.3°Culet: LargeDepth 68.9%

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: Oct 29
Current: $4,428 CAD|Low: $716 CAD|High: $8,353 CAD|Avg: $2,263 CAD|-47.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 9$716 CAD
Retailer 8$1,134 CAD
Retailer 3$1,145 CAD
Retailer 5$1,428 CAD
Retailer 6$1,524 CAD
Retailer 2$1,545 CAD
Retailer 4$1,954 CAD
Retailer 7$3,128 CAD
Brilliant Earth$4,428 CAD

41 data points across 9 retailers

8 retailers$1,145 CAD to $4,428 CAD

Retailer 1
-
$1,134 CAD
$812 USD
Price last confirmed 18 days ago
A
Retailer 2
-
$1,145 CAD
$820 USD
View
A
Retailer 3
-
$1,428 CAD
$1,022 USD
View
B+
Retailer 4
-
$1,524 CAD
$1,091 USD
View
A
Retailer 5
-
$1,545 CAD
£871 GBP
View
B+
Retailer 6
-
$1,954 CAD
$1,399 USD
View
B
Retailer 7
-
$3,128 CAD
SGD 3,026 SGD
View
Most Expensive
B
Brilliant Earth
21584608A · Oct 30
$4,428 CAD
$3,170 USD
View
7 more retailers have this diamond
Prices start from $1,145 CADSave up to $3,283 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
4.00ct Cushion
$1,145 CAD