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Emerald|Lab Grown|IGI

2.57ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG657424855

Shape and cutting style on the report: Emerald cut

Certificate IGI LG657424855

Diamond specifications and retailer prices

From $360 CAD
$258 USD
As of October 30, 2026
Save $1,444 CAD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,804 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 2.57ct lab-grown emerald diamond

This 2.57ct lab-grown emerald 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 LG657424855 or 657424855. Listed at 10 retailers as of October 29, 2026, with prices from $360 to $1,804, a $1,444 spread on the same certified stone. MOH London lists it at $1,804. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657424855
Dimensions9.49 × 6.36 × 4.38 mm
L/W Ratio1.49
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.49 mm6.36 mm2.57 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657424855
Side View
Table 63.0%Crown 37.1°Girdle: MED-STKPavilion 41.1°Culet: LargeDepth 68.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,804 CAD|Low: $360 CAD|High: $5,238 CAD|Avg: $1,748 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 8$360 CAD
Retailer 15$419 CAD
Retailer 10$447 CAD
Retailer 12$501 CAD
Retailer 9$671 CAD
Retailer 14$747 CAD
Retailer 2$853 CAD
Retailer 11$874 CAD
Retailer 4$943 CAD
Retailer 13$1,439 CAD
MOH London$1,804 CAD
Retailer 5$2,040 CAD
Retailer 7$2,843 CAD
Retailer 6$4,118 CAD
Retailer 3$5,238 CAD

4 data points across 15 retailers

10 retailers$360 CAD to $1,804 CAD

A
Cheapest Retailer
-
$360 CAD
$258 USD
A
Retailer 2
-
$419 CAD
$300 USD
View
A
Retailer 3
-
$447 CAD
$320 USD
View
A
Retailer 4
-
$501 CAD
HK$2,800 HKD
View
A
Retailer 5
-
$671 CAD
$480 USD
View
B+
Retailer 6
-
$747 CAD
$535 USD
View
A
Retailer 7
-
$853 CAD
£481 GBP
View
A
Retailer 8
-
$874 CAD
$626 USD
View
B
Retailer 9
-
$1,439 CAD
$1,030 USD
View
Most Expensive
B
MOH London
LG657424855 · Oct 29
$1,804 CAD
£1,017 GBP
View
9 more retailers have this diamond
Prices start from $360 CADSave up to $1,444 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 Emerald
$360 CAD