CaratHunter
Plans
Marquise|Lab Grown|IGI

1.31ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG524239249

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG524239249

Diamond specifications and retailer prices

From $436 CAD
As of November 4, 2026
Save $1,584 CAD (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,020 CAD at Reve Diamonds · As of November 4, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG524239249 or 524239249. Listed at 17 retailers as of November 4, 2026, with prices from $436 to $2,020, a $1,584 spread on the same certified stone. Reve Diamonds lists it at $2,020. 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

1.31
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG524239249
Dimensions11.15 × 5.86 × 3.56 mm
L/W Ratio1.90
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
11.15 mm5.86 mm1.31 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG524239249
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 60.8%

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 4
Current: $844 CAD|Low: $374 CAD|High: $1,959 CAD|Avg: $905 CAD|+2.2%
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
Retailer 14
November 6, 2026
Retailer 13$390 CAD
Retailer 6$436 CAD
Retailer 4$452 CAD
Retailer 14$483 CAD
Retailer 10$687 CAD
Retailer 11$705 CAD
Retailer 12$792 CAD
Retailer 3$797 CAD
Retailer 1$844 CAD
Retailer 5$941 CAD
Retailer 8$1,253 CAD
Retailer 2$1,554 CAD
Retailer 7$1,936 CAD
Retailer 9$1,941 CAD

42 data points across 14 retailers

17 retailers$436 CAD to $2,020 CAD

Retailer 1
-
$390 CAD
Price last confirmed 16 days ago
A
Retailer 2
-
$436 CAD
View
Final sale: no returns
Retailer 3
-
$452 CAD
View
Price last confirmed 16 days ago
Retailer 4
-
$483 CAD
View
Price last confirmed 15 days ago
Retailer 5
-
$483 CAD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$687 CAD
View
B+
Retailer 7
-
$705 CAD
View
Retailer 8
-
$792 CAD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$797 CAD
View
B+
Retailer 10
-
$844 CAD
View
B+
Retailer 11
-
$941 CAD
View
B
Retailer 12
-
$1,253 CAD
View
Retailer 13
-
$1,554 CAD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$1,624 CAD
View
B
Retailer 15
-
$1,936 CAD
View
B
Retailer 16
-
$1,941 CAD
View
Most Expensive
B
Reve Diamonds
4DB39F678 · Nov 4
$2,020 CAD
$1,446 USD
View
16 more retailers have this diamond
Prices start from $436 CADSave up to $1,584 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
$436 CAD