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Marquise|Lab Grown|IGI

1.40ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG508156143

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG508156143

Diamond specifications and retailer prices

From $1,314 CAD
$940 USD
As of November 2, 2026
Save $1,695 CAD (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,734 CAD at Friendly Diamonds · As of November 2, 2026
View at Friendly Diamonds

About this 1.4ct lab-grown marquise diamond

This 1.4ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG508156143 or 508156143. Listed at 15 retailers as of November 1, 2026, with a 129% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508156143
Dimensions11.08 × 6.12 × 3.54 mm
L/W Ratio1.81
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
11.08 mm6.12 mm1.40 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508156143
Side View
Table 66.0%Crown 33.4°Girdle: STK-THKPavilion 39.4°Culet: NoneDepth 57.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,480 CAD|Low: $1,314 CAD|High: $6,171 CAD|Avg: $2,945 CAD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7$1,314 CAD
Retailer 10$1,634 CAD
Retailer 3$1,777 CAD
Retailer 4$1,895 CAD
Retailer 11$1,895 CAD
Retailer 1$2,480 CAD
Retailer 5$2,749 CAD
Retailer 12$3,009 CAD
Retailer 8$3,483 CAD
Retailer 2$3,552 CAD
Retailer 6$4,938 CAD
Retailer 9$6,121 CAD

41 data points across 12 retailers

15 retailers$1,314 CAD to $3,009 CAD

B+
Cheapest Retailer
-
$1,314 CAD
$940 USD
B
Retailer 2
-
$1,634 CAD
$1,169 USD
View
B
Retailer 3
-
$1,777 CAD
$1,272 USD
View
B
Retailer 4
-
$1,895 CAD
$1,356 USD
View
Retailer 5
-
$1,895 CAD
$1,356 USD
View
Price last confirmed 16 days ago
B
Retailer 6
-
$2,138 CAD
$1,530 USD
View
B
Retailer 7
-
$2,480 CAD
£1,397 GBP
View
B
Retailer 8
-
$2,749 CAD
£1,549 GBP
View
B
Retailer 9
-
$3,009 CAD
$2,153 USD
View
Retailer 10
-
$3,483 CAD
ZAR 40,272 ZAR
View
Price under review
Retailer 11
-
$3,552 CAD
$2,542 USD
View
Price under review
Most Expensive
Friendly Diamonds
3121704 · Nov 2
$3,734 CAD
$2,672 USD
View
Price under review
11 more retailers have this diamond
Prices start from $1,314 CADSave up to $1,695 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.

B+
1.40ct Marquise
$1,314 CAD