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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 $542 SGD
$424 USD
As of October 30, 2026
Save $2,539 SGD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,081 SGD 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 $542 to $3,081, a $2,539 spread on the same certified stone. Brilliant Earth lists it at $3,081. 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
Colour
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

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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: $3,081 SGD|Low: $542 SGD|High: $3,170 SGD|Avg: $1,306 SGD|-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$542 SGD
Retailer 6$601 SGD
Retailer 5$767 SGD
Retailer 7$956 SGD
Retailer 3$969 SGD
Retailer 8$1,060 SGD
Retailer 2$1,087 SGD
Retailer 4$2,359 SGD
Brilliant Earth$3,081 SGD

40 data points across 9 retailers

11 retailers$542 SGD to $3,081 SGD

A
Cheapest Retailer
-
$542 SGD
$424 USD
Final sale: no returns
A
Retailer 2
-
$601 SGD
$470 USD
View
A
Retailer 3
-
$767 SGD
$600 USD
View
B+
Retailer 4
-
$956 SGD
$748 USD
View
A
Retailer 5
-
$969 SGD
€722 EUR
View
B+
Retailer 6
-
$1,038 SGD
$812 USD
View
B+
Retailer 7
-
$1,060 SGD
$829 USD
View
B+
Retailer 8
-
$1,087 SGD
£669 GBP
View
B
Retailer 9
-
$1,980 SGD
$1,549 USD
View
B
Retailer 10
-
$2,359 SGD
£1,453 GBP
View
Most Expensive
B
Brilliant Earth
8815295A · Oct 29
$3,081 SGD
$2,410 USD
View
10 more retailers have this diamond
Prices start from $542 SGDSave up to $2,539 SGD

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
$542 SGD