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Marquise|Lab Grown|IGI

1.31ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG818645562

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818645562

Diamond specifications and retailer prices

From $305 CAD
$218 USD
As of October 28, 2026
Save $1,348 CAD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,653 CAD at Reve Diamonds · As of October 28, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818645562 or 818645562. Listed at 15 retailers as of October 28, 2026, with prices from $305 to $1,653, a $1,348 spread on the same certified stone. Reve Diamonds lists it at $1,653. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818645562
Dimensions12.66 × 5.31 × 3.43 mm
L/W Ratio2.38
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.66 mm5.31 mm1.31 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818645562
Side View
Table 61.0%Crown 31.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
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 28
Current: $620 CAD|Low: $305 CAD|High: $1,680 CAD|Avg: $826 CAD|+3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
October 29, 2026
Retailer 2$305 CAD
Retailer 12$376 CAD
Retailer 6$429 CAD
Retailer 3$459 CAD
Retailer 7$585 CAD
Retailer 9$597 CAD
Retailer 1$620 CAD
Retailer 11$696 CAD
Retailer 8$831 CAD
Retailer 13$869 CAD
Retailer 5$1,141 CAD
Retailer 4$1,169 CAD
Retailer 10$1,594 CAD
Reve Diamonds$1,653 CAD

39 data points across 14 retailers

15 retailers$305 CAD to $1,653 CAD

A
Cheapest Retailer
-
$305 CAD
$218 USD
Final sale: no returns
Retailer 2
-
$346 CAD
$247 USD
View
Price last confirmed 32 days ago
A
Retailer 3
-
$376 CAD
HK$2,100 HKD
View
A
Retailer 4
-
$429 CAD
£241 GBP
View
B+
Retailer 5
-
$459 CAD
$328 USD
View
A
Retailer 6
-
$585 CAD
ZAR 6,747 ZAR
View
A
Retailer 7
-
$597 CAD
€406 EUR
View
A
Retailer 8
-
$620 CAD
£349 GBP
View
A
Retailer 9
-
$696 CAD
$497 USD
View
B+
Retailer 10
-
$831 CAD
A$913 AUD
View
B+
Retailer 11
-
$869 CAD
$621 USD
View
Retailer 12
-
$1,141 CAD
$815 USD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$1,169 CAD
$835 USD
View
B
Retailer 14
-
$1,594 CAD
£897 GBP
View
Most Expensive
B
Reve Diamonds
3B70A2503 · Oct 28
$1,653 CAD
$1,181 USD
View
14 more retailers have this diamond
Prices start from $305 CADSave up to $1,348 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
$305 CAD