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Round|Lab Grown|IGI

1.51ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG845657746

Shape and cutting style on the report: Round brilliant

Certificate IGI LG845657746

Diamond specifications and retailer prices

From $271 CAD
As of November 5, 2026
Save $1,269 CAD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,540 CAD at MOH London · As of November 5, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG845657746 or 845657746. Listed at 17 retailers as of November 5, 2026, with prices from $271 to $1,540, a $1,269 spread on the same certified stone. MOH London lists it at $1,540. 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
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845657746
Dimensions7.29 × 7.41 × 4.56 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeNone
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.29 mm7.41 mm1.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845657746
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $1,540 CAD|Low: $265 CAD|High: $1,545 CAD|Avg: $700 CAD|-0.3%
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 13$271 CAD
Retailer 3$297 CAD
Retailer 5$309 CAD
Retailer 7$328 CAD
Retailer 10$337 CAD
Retailer 6$567 CAD
Retailer 11$577 CAD
Retailer 2$585 CAD
Retailer 17$587 CAD
Retailer 14$592 CAD
Retailer 8$690 CAD
Retailer 16$806 CAD
Retailer 15$1,006 CAD
Retailer 12$1,081 CAD
Retailer 4$1,135 CAD
Retailer 9$1,215 CAD
MOH London$1,540 CAD

18 data points across 17 retailers

17 retailers$271 CAD to $1,540 CAD

A
Cheapest Retailer
-
$271 CAD
A
Retailer 2
-
$297 CAD
View
Final sale: no returns
A
Retailer 3
-
$309 CAD
View
Retailer 4
-
$328 CAD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$337 CAD
View
A
Retailer 6
-
$567 CAD
View
A
Retailer 7
-
$577 CAD
View
B+
Retailer 8
-
$585 CAD
View
A
Retailer 9
-
$587 CAD
View
A
Retailer 10
-
$592 CAD
View
A
Retailer 11
-
$690 CAD
View
B+
Retailer 12
-
$806 CAD
View
B+
Retailer 13
-
$1,006 CAD
View
B+
Retailer 14
-
$1,081 CAD
View
B+
Retailer 15
-
$1,135 CAD
View
B
Retailer 16
-
$1,215 CAD
View
Most Expensive
B
MOH London
LG845657746 · Nov 5
$1,540 CAD
£868 GBP
View
16 more retailers have this diamond
Prices start from $271 CADSave up to $1,269 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
$271 CAD