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Round|Lab Grown|IGI

1.51ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG496134880

Shape and cutting style on the report: Round brilliant

Certificate IGI LG496134880

Diamond specifications and retailer prices

From $1,173 CAD
As of November 5, 2026
Save $5,258 CAD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,431 CAD at MOH London · As of November 3, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496134880 or 496134880. Listed at 10 retailers as of November 3, 2026, with prices from $1,173 to $6,431, a $5,258 spread on the same certified stone. MOH London lists it at $6,431. 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

1.51
Carat
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496134880
Dimensions7.38 × 7.42 × 4.49 mm
L/W Ratio1.01
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
7.38 mm7.42 mm1.51 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496134880
Side View
Table 59.0%Crown 33.7°GirdlePavilion 40.9°Culet: NoneDepth 60.7%

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: Nov 5
Current: $6,431 CAD|Low: $1,173 CAD|High: $6,518 CAD|Avg: $3,049 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 2$1,173 CAD
Retailer 3$1,726 CAD
Retailer 6$1,933 CAD
Retailer 4$2,001 CAD
Retailer 7$2,001 CAD
Retailer 9$2,821 CAD
Retailer 5$3,174 CAD
Retailer 8$3,835 CAD
Retailer 10$4,482 CAD
MOH London$6,431 CAD

14 data points across 10 retailers

10 retailers$1,173 CAD to $6,431 CAD

A
Cheapest Retailer
-
$1,173 CAD
B+
Retailer 2
-
$1,726 CAD
View
B+
Retailer 3
-
$1,877 CAD
View
B+
Retailer 4
-
$1,933 CAD
View
Final sale: no returns
Retailer 5
-
$2,001 CAD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$2,001 CAD
View
B
Retailer 7
-
$3,174 CAD
View
B
Retailer 8
-
$3,753 CAD
View
B
Retailer 9
-
$3,835 CAD
View
Most Expensive
B
MOH London
LG496134880 · Nov 3
$6,431 CAD
£3,626 GBP
View
9 more retailers have this diamond
Prices start from $1,173 CADSave up to $5,258 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
1.51ct Round
$1,173 CAD