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Round|Lab Grown|IGI

1.51ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG631466945

Shape and cutting style on the report: Round brilliant

Certificate IGI LG631466945

Diamond specifications and retailer prices

From $274 CAD
$196 USD
As of October 29, 2026
Save $1,325 CAD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,598 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 LG631466945 or 631466945. Listed at 13 retailers as of October 29, 2026, with prices from $274 to $1,598, a $1,325 spread on the same certified stone. MOH London lists it at $1,598. 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 angle33.5°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631466945
Dimensions7.46 × 7.40 × 4.44 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
7.46 mm7.40 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631466945
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.8%

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 29
Current: $1,598 CAD|Low: $274 CAD|High: $1,598 CAD|Avg: $735 CAD|+3.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 3$274 CAD
Retailer 12$318 CAD
Retailer 11$339 CAD
Retailer 4$345 CAD
Retailer 7$592 CAD
Retailer 5$608 CAD
Retailer 2$615 CAD
Retailer 6$805 CAD
Retailer 9$1,006 CAD
Retailer 10$1,094 CAD
Retailer 8$1,097 CAD
MOH London$1,598 CAD

45 data points across 12 retailers

13 retailers$274 CAD to $1,598 CAD

A
Cheapest Retailer
-
$274 CAD
$196 USD
A
Retailer 2
-
$318 CAD
$228 USD
View
A
Retailer 3
-
$339 CAD
$243 USD
View
A
Retailer 4
-
$345 CAD
$247 USD
View
Final sale: no returns
A
Retailer 5
-
$383 CAD
$274 USD
View
B+
Retailer 6
-
$592 CAD
$424 USD
View
A
Retailer 7
-
$608 CAD
£342 GBP
View
A
Retailer 8
-
$615 CAD
£347 GBP
View
B+
Retailer 9
-
$805 CAD
$576 USD
View
B+
Retailer 10
-
$1,006 CAD
$720 USD
View
B+
Retailer 11
-
$1,094 CAD
$783 USD
View
B+
Retailer 12
-
$1,097 CAD
$785 USD
View
Most Expensive
B
MOH London
LG631466945 · Oct 29
$1,598 CAD
£901 GBP
View
12 more retailers have this diamond
Prices start from $274 CADSave up to $1,325 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
$274 CAD