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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 $244 USD
As of November 2, 2026
Save $2,096 USD (90%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,340 USD at Do Amore Diamonds · As of November 2, 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 18 retailers as of November 2, 2026, with prices from $244 to $2,340, a $2,096 spread on the same certified stone. Do Amore Diamonds lists it at $2,340. 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: $2,340 USD|Low: $244 USD|High: $2,340 USD|Avg: $819 USD
Do Amore Diamonds
Retailer 2
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Retailer 7
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Retailer 11
Retailer 12
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Retailer 18
November 3, 2026
Retailer 4$244 USD
Retailer 5$273 USD
Retailer 3$283 USD
Retailer 16$303 USD
Retailer 12$353 USD
Retailer 6$508 USD
Retailer 13$576 USD
Retailer 9$620 USD
Retailer 2$635 USD
Retailer 8$728 USD
Retailer 15$813 USD
Retailer 11$845 USD
Retailer 17$1,074 USD
Retailer 10$1,242 USD
Retailer 7$1,279 USD
Retailer 18$1,341 USD
Retailer 14$1,670 USD
Do Amore Diamonds$2,340 USD

14 data points across 18 retailers

18 retailers$244 USD to $2,340 USD

A
Cheapest Retailer
-
$244 USD
A
Retailer 2
-
$273 USD
View
Final sale: no returns
A
Retailer 3
-
$283 USD
View
A
Retailer 4
-
$303 USD
View
A
Retailer 5
-
$353 USD
£278 GBP
View
A
Retailer 6
-
$508 USD
View
A
Retailer 7
-
$576 USD
ZAR 9,308 ZAR
View
A
Retailer 8
-
$620 USD
View
A
Retailer 9
-
$635 USD
£500 GBP
View
B+
Retailer 10
-
$728 USD
View
B+
Retailer 11
-
$813 USD
A$1,251 AUD
View
B+
Retailer 12
-
$845 USD
View
B+
Retailer 13
-
$1,074 USD
View
B
Retailer 14
-
$1,242 USD
View
B
Retailer 15
-
$1,279 USD
SGD 1,729 SGD
View
Retailer 16
-
$1,341 USD
£1,056 GBP
View
Price last confirmed 7 days ago
B
Retailer 17
-
$1,670 USD
View
Most Expensive
B
Do Amore Diamonds
27-A5B4FFDDE · Nov 2
$2,340 USD
View
17 more retailers have this diamond
Prices start from $244 USDSave up to $2,096 USD

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
$244 USD