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Marquise|Lab Grown|IGI

1.31ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG800676819

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800676819

Diamond specifications and retailer prices

From $440 AUD
As of November 4, 2026
Save $3,460 AUD (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,900 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800676819 or 800676819. Listed at 15 retailers as of November 4, 2026, with prices from $440 to $3,900, a $3,460 spread on the same certified stone. Do Amore Diamonds lists it at $3,900. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800676819
Dimensions11.53 × 5.65 × 3.51 mm
L/W Ratio2.04
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
11.53 mm5.65 mm1.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800676819
Side View
Table 57.0%Crown 33.3°Girdle: MED-STKPavilion 40°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A+
Exceptional
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: $3,900 AUD|Low: $440 AUD|High: $4,900 AUD|Avg: $1,724 AUD|-11.9%
Do Amore Diamonds
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
Retailer 15
November 5, 2026
Retailer 10$440 AUD
Retailer 15$510 AUD
Retailer 7$557 AUD
Retailer 11$774 AUD
Retailer 5$800 AUD
Retailer 13$889 AUD
Retailer 8$1,017 AUD
Retailer 6$1,031 AUD
Retailer 3$1,159 AUD
Retailer 12$1,674 AUD
Retailer 14$1,933 AUD
Retailer 2$2,403 AUD
Retailer 4$3,221 AUD
Retailer 9$3,257 AUD
Do Amore Diamonds$3,900 AUD

29 data points across 15 retailers

15 retailers$440 AUD to $3,900 AUD

A+
Cheapest Retailer
-
$440 AUD
A
Retailer 2
-
$510 AUD
View
A
Retailer 3
-
$557 AUD
View
Final sale: no returns
A
Retailer 4
-
$774 AUD
View
A
Retailer 5
-
$800 AUD
View
A
Retailer 6
-
$889 AUD
View
A
Retailer 7
-
$1,017 AUD
View
A
Retailer 8
-
$1,031 AUD
View
A
Retailer 9
-
$1,159 AUD
View
B+
Retailer 10
-
$1,674 AUD
View
B+
Retailer 11
-
$1,933 AUD
View
B+
Retailer 12
-
$2,403 AUD
View
Retailer 13
-
$3,221 AUD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
$3,257 AUD
View
Most Expensive
B
Do Amore Diamonds
27-9FE0E3BBE · Nov 4
$3,900 AUD
$2,730 USD
View
14 more retailers have this diamond
Prices start from $440 AUDSave up to $3,460 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
$440 AUD