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1.51ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG844682459

Shape and cutting style on the report: Round brilliant

Certificate IGI LG844682459

Diamond specifications and retailer prices

From $360 CAD
$258 USD
As of October 27, 2026
Save $1,093 CAD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,453 CAD at MOH London · As of October 29, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG844682459 or 844682459. Listed at 9 retailers as of October 27, 2026, with prices from $360 to $1,453, a $1,093 spread on the same certified stone. MOH London lists it at $1,453. 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
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844682459
Dimensions7.30 × 7.27 × 4.52 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.30 mm7.27 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844682459
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.9%

Caratlytics Score

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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 27
Current: $1,453 CAD|Low: $360 CAD|High: $1,453 CAD|Avg: $775 CAD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 5$360 CAD
Retailer 8$464 CAD
Retailer 6$641 CAD
Retailer 3$646 CAD
Retailer 2$661 CAD
Retailer 4$1,162 CAD
Retailer 7$1,169 CAD
MOH London$1,453 CAD

7 data points across 8 retailers

9 retailers$360 CAD to $1,453 CAD

A
Cheapest Retailer
-
$360 CAD
$258 USD
A
Retailer 2
-
$360 CAD
$258 USD
View
B+
Retailer 3
-
$464 CAD
$332 USD
View
A
Retailer 4
-
$641 CAD
$459 USD
View
A
Retailer 5
-
$646 CAD
£364 GBP
View
A
Retailer 6
-
$661 CAD
£373 GBP
View
B
Retailer 7
-
$1,162 CAD
$832 USD
View
B
Retailer 8
-
$1,169 CAD
SGD 1,131 SGD
View
Most Expensive
B
MOH London
LG844682459 · Oct 29
$1,453 CAD
£819 GBP
View
8 more retailers have this diamond
Prices start from $360 CADSave up to $1,093 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
$360 CAD