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Marquise|Lab Grown|IGI

1.31ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG818650471

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818650471

Diamond specifications and retailer prices

From $303 CAD
$217 USD
As of November 1, 2026
Save $1,339 CAD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,642 CAD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.31ct lab-grown marquise diamond

This 1.31ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818650471 or 818650471. Listed at 16 retailers as of November 1, 2026, with prices from $303 to $1,642, a $1,339 spread on the same certified stone. Reve Diamonds lists it at $1,642. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818650471
Dimensions12.72 × 5.42 × 3.18 mm
L/W Ratio2.35
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.72 mm5.42 mm1.31 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818650471
Side View
Table 60.0%Crown 33.1°Girdle: Slightly ThickPavilion 38.3°Culet: NoneDepth 58.7%

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: Nov 1
Current: $868 CAD|Low: $303 CAD|High: $1,651 CAD|Avg: $843 CAD|+10.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
November 2, 2026
Retailer 3$303 CAD
Retailer 7$403 CAD
Retailer 4$454 CAD
Retailer 9$581 CAD
Retailer 12$590 CAD
Retailer 8$614 CAD
Retailer 2$699 CAD
Retailer 6$820 CAD
Retailer 1$868 CAD
Retailer 13$1,041 CAD
Retailer 5$1,157 CAD
Retailer 11$1,258 CAD
Retailer 10$1,572 CAD
Reve Diamonds$1,642 CAD

36 data points across 14 retailers

16 retailers$303 CAD to $1,642 CAD

A
Cheapest Retailer
-
$303 CAD
$217 USD
Final sale: no returns
Retailer 2
-
$335 CAD
$240 USD
View
Price last confirmed 36 days ago
A
Retailer 3
-
$376 CAD
HK$2,100 HKD
View
A
Retailer 4
-
$403 CAD
£227 GBP
View
B+
Retailer 5
-
$454 CAD
$325 USD
View
A
Retailer 6
-
$581 CAD
ZAR 6,714 ZAR
View
A
Retailer 7
-
$590 CAD
€402 EUR
View
A
Retailer 8
-
$614 CAD
£346 GBP
View
A
Retailer 9
-
$699 CAD
$500 USD
View
B+
Retailer 10
-
$820 CAD
A$903 AUD
View
B+
Retailer 11
-
$868 CAD
$621 USD
View
B+
Retailer 12
-
$1,041 CAD
$745 USD
View
B
Retailer 13
-
$1,157 CAD
$828 USD
View
B
Retailer 14
-
$1,258 CAD
$900 USD
View
B
Retailer 15
-
$1,572 CAD
£886 GBP
View
Most Expensive
B
Reve Diamonds
148CC4C3D · Nov 1
$1,642 CAD
$1,175 USD
View
15 more retailers have this diamond
Prices start from $303 CADSave up to $1,339 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
1.31ct Marquise
$303 CAD