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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 $349 AUD
As of November 2, 2026
Save $2,994 AUD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,343 AUD 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 $349 to $3,343, a $2,994 spread on the same certified stone. Do Amore Diamonds lists it at $3,343. 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
Colour
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: $3,343 AUD|Low: $349 AUD|High: $3,343 AUD|Avg: $1,169 AUD
Do Amore Diamonds
Retailer 2
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Retailer 18
November 3, 2026
Retailer 4$349 AUD
Retailer 5$390 AUD
Retailer 3$404 AUD
Retailer 16$433 AUD
Retailer 13$504 AUD
Retailer 6$726 AUD
Retailer 14$823 AUD
Retailer 9$886 AUD
Retailer 11$906 AUD
Retailer 8$1,040 AUD
Retailer 2$1,171 AUD
Retailer 12$1,207 AUD
Retailer 17$1,534 AUD
Retailer 10$1,774 AUD
Retailer 7$1,827 AUD
Retailer 18$1,916 AUD
Retailer 15$2,386 AUD
Do Amore Diamonds$3,343 AUD

14 data points across 18 retailers

17 retailers$349 AUD to $3,343 AUD

A
Cheapest Retailer
-
$349 AUD
A
Retailer 2
-
$404 AUD
View
A
Retailer 3
-
$433 AUD
View
A
Retailer 4
-
$504 AUD
View
A
Retailer 5
-
$726 AUD
View
A
Retailer 6
-
$823 AUD
View
A
Retailer 7
-
$886 AUD
View
A
Retailer 8
-
$906 AUD
View
A
Retailer 9
-
$1,040 AUD
View
B+
Retailer 10
-
$1,171 AUD
View
B+
Retailer 11
-
$1,207 AUD
View
B+
Retailer 12
-
$1,534 AUD
View
B
Retailer 13
-
$1,774 AUD
View
B
Retailer 14
-
$1,827 AUD
View
Retailer 15
-
$1,916 AUD
View
Price last confirmed 11 days ago
Retailer 16
-
$2,386 AUD
View
Price last confirmed 9 days ago
Most Expensive
B
Do Amore Diamonds
27-A5B4FFDDE · Nov 4
$3,343 AUD
$2,340 USD
View
16 more retailers have this diamond
Prices start from $349 AUDSave up to $2,994 AUD

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
$349 AUD