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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 HK$2,410 HKD
As of October 30, 2026
Save HK$10,771 HKD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$13,181 HKD at Rare Carat · As of October 28, 2026
View at Rare Carat

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 11 retailers as of October 28, 2026, with prices from HK$2,410 to HK$13,181, a HK$10,771 spread on the same certified stone. Rare Carat lists it at HK$13,181. 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
Colour
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 30
Current: HK$13,181 HKD|Low: HK$1,914 HKD|High: HK$23,929 HKD|Avg: HK$6,492 HKD|-2.0%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 3HK$1,914 HKD
Retailer 4HK$2,410 HKD
Retailer 6HK$2,725 HKD
Retailer 5HK$3,452 HKD
Retailer 10HK$3,640 HKD
Retailer 7HK$3,917 HKD
Retailer 12HK$4,449 HKD
Retailer 9HK$5,516 HKD
Retailer 11HK$6,886 HKD
Retailer 8HK$8,519 HKD
Retailer 2HK$12,710 HKD
Rare CaratHK$13,181 HKD

42 data points across 12 retailers

11 retailersHK$2,410 HKD to HK$13,181 HKD

A
Cheapest Retailer
-
HK$2,410 HKD
A
Retailer 2
-
HK$2,725 HKD
£273 GBP
View
A
Retailer 3
-
HK$3,452 HKD
€419 EUR
View
B+
Retailer 4
-
HK$3,640 HKD
$464 USD
View
A
Retailer 5
-
HK$3,917 HKD
£393 GBP
View
A
Retailer 6
-
HK$4,449 HKD
$567 USD
View
B+
Retailer 7
-
HK$5,516 HKD
$703 USD
View
B+
Retailer 8
-
HK$6,886 HKD
SGD 1,186 SGD
View
B+
Retailer 9
-
HK$8,519 HKD
£855 GBP
View
B
Retailer 10
-
HK$12,710 HKD
$1,620 USD
View
Most Expensive
B
Rare Carat
87431-C · Oct 28
HK$13,181 HKD
$1,680 USD
View
10 more retailers have this diamond
Prices start from HK$2,410 HKDSave up to HK$10,771 HKD

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
HK$2,410 HKD