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Cushion|Lab Grown|IGI

2.50ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG613392731

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG613392731

Diamond specifications and retailer prices

From $593 CAD
$424 USD
As of October 30, 2026
Save $2,780 CAD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,373 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.5ct lab-grown cushion diamond

This 2.5ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG613392731 or 613392731. Listed at 11 retailers as of October 29, 2026, with prices from $593 to $3,373, a $2,780 spread on the same certified stone. Brilliant Earth lists it at $3,373. 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

2.50
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG613392731
Dimensions8.71 × 7.38 × 5.20 mm
L/W Ratio1.18
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
8.71 mm7.38 mm2.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG613392731
Side View
Table 63.0%Crown 33.7°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 70.5%

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 30
Current: $3,373 CAD|Low: $593 CAD|High: $3,471 CAD|Avg: $1,434 CAD|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 9$593 CAD
Retailer 6$658 CAD
Retailer 5$840 CAD
Retailer 7$1,047 CAD
Retailer 3$1,061 CAD
Retailer 8$1,160 CAD
Retailer 2$1,190 CAD
Retailer 4$2,583 CAD
Brilliant Earth$3,373 CAD

42 data points across 9 retailers

11 retailers$593 CAD to $3,373 CAD

A
Cheapest Retailer
-
$593 CAD
$424 USD
Final sale: no returns
A
Retailer 2
-
$658 CAD
$470 USD
View
A
Retailer 3
-
$840 CAD
$600 USD
View
B+
Retailer 4
-
$1,047 CAD
$748 USD
View
A
Retailer 5
-
$1,061 CAD
€722 EUR
View
B+
Retailer 6
-
$1,136 CAD
$812 USD
View
B+
Retailer 7
-
$1,160 CAD
$829 USD
View
B+
Retailer 8
-
$1,190 CAD
£669 GBP
View
B
Retailer 9
-
$2,168 CAD
$1,549 USD
View
B
Retailer 10
-
$2,583 CAD
£1,453 GBP
View
Most Expensive
B
Brilliant Earth
8815295A · Oct 29
$3,373 CAD
$2,410 USD
View
10 more retailers have this diamond
Prices start from $593 CADSave up to $2,780 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
2.50ct Cushion
$593 CAD