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Cushion|Lab Grown|IGI

2.57ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG635496329

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG635496329

Diamond specifications and retailer prices

From $652 CAD
$466 USD
As of October 28, 2026
Save $2,014 CAD (76%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,666 CAD at MOH London · As of October 29, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG635496329 or 635496329. Listed at 4 retailers as of October 28, 2026, with prices from $652 to $2,666, a $2,014 spread on the same certified stone. MOH London lists it at $2,666. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.57
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635496329
Dimensions8.13 × 7.77 × 4.97 mm
L/W Ratio1.05
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
8.13 mm7.77 mm2.57 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635496329
Side View
Table 69.0%Crown 41.3°Girdle: THN-STKPavilion 38°Culet: NoneDepth 64.0%

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 28
Current: $2,666 CAD|Low: $652 CAD|High: $3,454 CAD|Avg: $1,762 CAD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 4$652 CAD
Retailer 2$1,141 CAD
Retailer 3$1,141 CAD
Retailer 7$1,214 CAD
Retailer 5$1,685 CAD
Retailer 6$2,417 CAD
MOH London$2,666 CAD
Retailer 8$3,454 CAD

9 data points across 8 retailers

4 retailers$652 CAD to $2,666 CAD

A
Cheapest Retailer
-
$652 CAD
$466 USD
Final sale: no returns
B+
Retailer 2
-
$1,141 CAD
$815 USD
View
B+
Retailer 3
-
$1,141 CAD
$815 USD
View
Most Expensive
B
MOH London
LG635496329 · Oct 29
$2,666 CAD
£1,500 GBP
View
3 more retailers have this diamond
Prices start from $652 CADSave up to $2,014 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
2.57ct Cushion
$652 CAD