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Cushion|Lab Grown|IGI

2.57ct E SI2 Cushion Lab Grown Diamond

ID • E/SI2 • IGI LG641413011

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG641413011

Diamond specifications and retailer prices

From $244 USD
As of October 27, 2026
Save $2,806 USD (92%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,050 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 2.57ct lab-grown cushion diamond

This 2.57ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG641413011 or 641413011. Listed at 12 retailers as of October 27, 2026, with prices from $244 to $3,050, a $2,806 spread on the same certified stone. Brilliant Earth lists it at $3,050. 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

2.57
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641413011
Dimensions9.31 × 6.91 × 4.67 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.31 mm6.91 mm2.57 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG641413011
Side View
Table 63.0%Crown 34.5°Girdle: MED-STKPavilion 33.5°Culet: NoneDepth 67.6%

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 27
Current: $3,050 USD|Low: $244 USD|High: $3,050 USD|Avg: $830 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 3$244 USD
Retailer 4$307 USD
Retailer 5$347 USD
Retailer 2$440 USD
Retailer 10$464 USD
Retailer 6$499 USD
Retailer 12$567 USD
Retailer 9$703 USD
Retailer 11$878 USD
Retailer 7$1,086 USD
Retailer 8$1,680 USD
Brilliant Earth$3,050 USD

41 data points across 12 retailers

12 retailers$244 USD to $3,050 USD

A
Cheapest Retailer
-
$244 USD
Final sale: no returns
A
Retailer 2
-
$307 USD
HK$2,400 HKD
View
A
Retailer 3
-
$347 USD
£273 GBP
View
A
Retailer 4
-
$440 USD
€419 EUR
View
B+
Retailer 5
-
$464 USD
View
A
Retailer 6
-
$499 USD
£393 GBP
View
A
Retailer 7
-
$567 USD
View
A
Retailer 8
-
$703 USD
View
B+
Retailer 9
-
$878 USD
SGD 1,186 SGD
View
B+
Retailer 10
-
$1,086 USD
£855 GBP
View
B
Retailer 11
-
$1,680 USD
View
Most Expensive
B
Brilliant Earth
14415953A · Oct 28
$3,050 USD
View
11 more retailers have this diamond
Prices start from $244 USDSave up to $2,806 USD

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
2.57ct Cushion
$244 USD