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Round|Lab Grown|IGI

1.51ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG818686567

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686567

Diamond specifications and retailer prices

From $281 CAD
$201 USD
As of October 29, 2026
Save $1,358 CAD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,639 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 LG818686567 or 818686567. Listed at 15 retailers as of October 29, 2026, with prices from $281 to $1,639, a $1,358 spread on the same certified stone. MOH London lists it at $1,639. 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 angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686567
Dimensions7.36 × 7.33 × 4.53 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.36 mm7.33 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686567
Side View
Table 57.0%Crown 34.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.7%

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: Oct 29
Current: $1,639 CAD|Low: $281 CAD|High: $1,650 CAD|Avg: $840 CAD|-0.5%
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 9$281 CAD
Retailer 11$349 CAD
Retailer 7$582 CAD
Retailer 12$605 CAD
Retailer 6$623 CAD
Retailer 4$637 CAD
Retailer 2$638 CAD
Retailer 5$900 CAD
Retailer 8$999 CAD
Retailer 3$1,195 CAD
Retailer 10$1,201 CAD
MOH London$1,639 CAD

44 data points across 12 retailers

15 retailers$281 CAD to $1,639 CAD

A
Cheapest Retailer
-
$281 CAD
$201 USD
A
Retailer 2
-
$325 CAD
$233 USD
View
A
Retailer 3
-
$349 CAD
$250 USD
View
A
Retailer 4
-
$349 CAD
$250 USD
View
A
Retailer 5
-
$582 CAD
€397 EUR
View
B+
Retailer 6
-
$605 CAD
$433 USD
View
A
Retailer 7
-
$623 CAD
£351 GBP
View
A
Retailer 8
-
$637 CAD
$456 USD
View
A
Retailer 9
-
$638 CAD
£360 GBP
View
B+
Retailer 10
-
$900 CAD
$644 USD
View
B+
Retailer 11
-
$999 CAD
$715 USD
View
B+
Retailer 12
-
$1,120 CAD
$802 USD
View
B
Retailer 13
-
$1,195 CAD
$856 USD
View
B
Retailer 14
-
$1,201 CAD
$860 USD
View
Most Expensive
B
MOH London
LG818686567 · Oct 29
$1,639 CAD
£924 GBP
View
14 more retailers have this diamond
Prices start from $281 CADSave up to $1,358 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
$281 CAD