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Marquise|Lab Grown|IGI

1.31ct F VS1 Marquise Lab Grown Diamond

VG • F/VS1 • IGI LG623423017

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG623423017

Diamond specifications and retailer prices

From $401 AUD
$281 USD
As of November 2, 2026
Save $1,603 AUD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,004 AUD at MOH London · As of October 29, 2026
View at MOH London

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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG623423017 or 623423017. Listed at 19 retailers as of October 29, 2026, with prices from $401 to $2,004, a $1,603 spread on the same certified stone. MOH London lists it at $2,004. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.31
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623423017
Dimensions10.61 × 5.73 × 3.69 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizePointed
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
10.61 mm5.73 mm1.31 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623423017
Side View
Table 60.0%Crown 38°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 64.4%

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: $2,004 AUD|Low: $385 AUD|High: $2,017 AUD|Avg: $1,042 AUD|-0.5%
MOH London
Retailer 2
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Retailer 17
Retailer 18
Retailer 19
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Retailer 21
November 2, 2026
Retailer 21$401 AUD
Retailer 5$465 AUD
Retailer 3$498 AUD
Retailer 6$498 AUD
Retailer 18$598 AUD
Retailer 9$658 AUD
Retailer 13$721 AUD
Retailer 10$758 AUD
Retailer 20$820 AUD
Retailer 7$858 AUD
Retailer 2$858 AUD
Retailer 11$892 AUD
Retailer 15$898 AUD
Retailer 16$1,122 AUD
Retailer 17$1,134 AUD
Retailer 19$1,528 AUD
Retailer 4$1,600 AUD
Retailer 14$1,622 AUD
Retailer 8$1,805 AUD
Retailer 12$1,892 AUD
MOH London$2,004 AUD

31 data points across 21 retailers

19 retailers$401 AUD to $2,004 AUD

A
Cheapest Retailer
-
$401 AUD
$281 USD
A
Retailer 2
-
$465 AUD
$326 USD
View
Retailer 3
-
$498 AUD
$349 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$498 AUD
$349 USD
View
Retailer 5
-
$598 AUD
£330 GBP
View
Price last confirmed 16 days ago
Retailer 6
-
$658 AUD
HK$3,600 HKD
View
Price last confirmed 27 days ago
A
Retailer 7
-
$721 AUD
$505 USD
View
B+
Retailer 8
-
$758 AUD
$531 USD
View
B+
Retailer 9
-
$820 AUD
$575 USD
View
B+
Retailer 10
-
$858 AUD
$601 USD
View
B+
Retailer 11
-
$858 AUD
ZAR 9,711 ZAR
View
B+
Retailer 12
-
$898 AUD
View
B
Retailer 13
-
$1,122 AUD
View
B
Retailer 14
-
$1,134 AUD
$795 USD
View
B
Retailer 15
-
$1,528 AUD
$1,071 USD
View
B
Retailer 16
-
$1,600 AUD
$1,121 USD
View
B
Retailer 17
-
$1,622 AUD
$1,137 USD
View
Retailer 18
-
$1,892 AUD
SGD 1,792 SGD
View
Price last confirmed 26 days ago
Most Expensive
B
MOH London
LG623423017 · Oct 29
$2,004 AUD
£1,106 GBP
View
18 more retailers have this diamond
Prices start from $401 AUDSave up to $1,603 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
$401 AUD