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Round|Lab Grown|IGI

2.57ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG445039381

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445039381

Diamond specifications and retailer prices

From $3,127 CAD
As of November 5, 2026
Save $6,687 CAD (68%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,814 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 2.57ct lab-grown round diamond

This 2.57ct lab-grown round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445039381 or 445039381. Listed at 10 retailers as of November 5, 2026, with prices from $3,127 to $9,814, a $6,687 spread on the same certified stone. MOH London lists it at $9,814. 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
K
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445039381
Dimensions8.81 × 8.87 × 5.28 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
8.81 mm8.87 mm2.57 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445039381
Side View
Table 59.5%Crown 33.2°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.7%

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: Nov 5
Current: $9,814 CAD|Low: $3,001 CAD|High: $9,973 CAD|Avg: $5,026 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$3,127 CAD
Retailer 2$3,517 CAD
Retailer 6$3,627 CAD
Retailer 8$3,627 CAD
Retailer 3$3,855 CAD
Retailer 9$4,627 CAD
Retailer 7$5,663 CAD
Retailer 4$5,686 CAD
MOH London$9,814 CAD

40 data points across 9 retailers

10 retailers$3,127 CAD to $9,814 CAD

A
Cheapest Retailer
-
$3,127 CAD
A
Retailer 2
-
$3,402 CAD
View
A
Retailer 3
-
$3,517 CAD
View
Retailer 4
-
$3,627 CAD
View
Price last confirmed 26 days ago
A
Retailer 5
-
$3,627 CAD
View
A
Retailer 6
-
$3,855 CAD
View
B
Retailer 7
-
$4,986 CAD
View
B
Retailer 8
-
$5,663 CAD
View
B
Retailer 9
-
$5,686 CAD
View
Most Expensive
B
MOH London
LG445039381 · Nov 5
$9,814 CAD
£5,533 GBP
View
9 more retailers have this diamond
Prices start from $3,127 CADSave up to $6,687 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 Round
$3,127 CAD