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Marquise|Lab Grown|IGI

1.31ct F IF Marquise Lab Grown Diamond

EX • F/IF • IGI LG841659049

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841659049

Diamond specifications and retailer prices

From $343 CAD
As of November 2, 2026
Save $2,948 CAD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,291 CAD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG841659049 or 841659049. Listed at 17 retailers as of November 2, 2026, with prices from $343 to $3,291, a $2,948 spread on the same certified stone. Do Amore Diamonds lists it at $3,291. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841659049
Dimensions11.47 × 5.81 × 3.57 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.47 mm5.81 mm1.31 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841659049
Side View
Table 60.0%Crown 34.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.4%

Caratlytics Score

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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: Nov 2
Current: $3,291 CAD|Low: $343 CAD|High: $3,291 CAD|Avg: $1,151 CAD
Do Amore Diamonds
Retailer 2
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Retailer 12
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Retailer 18
November 3, 2026
Retailer 4$343 CAD
Retailer 5$384 CAD
Retailer 3$398 CAD
Retailer 16$426 CAD
Retailer 13$497 CAD
Retailer 6$715 CAD
Retailer 14$810 CAD
Retailer 9$872 CAD
Retailer 11$892 CAD
Retailer 8$1,024 CAD
Retailer 2$1,153 CAD
Retailer 12$1,189 CAD
Retailer 17$1,511 CAD
Retailer 10$1,747 CAD
Retailer 7$1,799 CAD
Retailer 18$1,886 CAD
Retailer 15$2,349 CAD
Do Amore Diamonds$3,291 CAD

14 data points across 18 retailers

17 retailers$343 CAD to $3,291 CAD

A
Cheapest Retailer
-
$343 CAD
A
Retailer 2
-
$398 CAD
View
A
Retailer 3
-
$426 CAD
View
A
Retailer 4
-
$497 CAD
View
A
Retailer 5
-
$715 CAD
View
A
Retailer 6
-
$810 CAD
View
A
Retailer 7
-
$872 CAD
View
A
Retailer 8
-
$892 CAD
View
A
Retailer 9
-
$1,024 CAD
View
B+
Retailer 10
-
$1,153 CAD
View
B+
Retailer 11
-
$1,189 CAD
View
B+
Retailer 12
-
$1,511 CAD
View
B
Retailer 13
-
$1,747 CAD
View
B
Retailer 14
-
$1,799 CAD
View
Retailer 15
-
$1,886 CAD
View
Price last confirmed 12 days ago
Retailer 16
-
$2,349 CAD
View
Price last confirmed 10 days ago
Most Expensive
B
Do Amore Diamonds
27-A5B4FFDDE · Nov 4
$3,291 CAD
$2,340 USD
View
16 more retailers have this diamond
Prices start from $343 CADSave up to $2,948 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
$343 CAD