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Marquise|Lab Grown|IGI

1.23ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG851664807

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG851664807

Diamond specifications and retailer prices

From $306 AUD
As of November 2, 2026
Save $1,207 AUD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,513 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG851664807 or 851664807. Listed at 13 retailers as of November 2, 2026, with prices from $306 to $1,513, a $1,207 spread on the same certified stone. MOH London lists it at $1,513. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851664807
Dimensions10.90 × 5.62 × 3.54 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.90 mm5.62 mm1.23 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851664807
Side View
Table 59.0%Crown 35.4°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
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: $1,513 AUD|Low: $306 AUD|High: $1,513 AUD|Avg: $802 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 11$306 AUD
Retailer 4$420 AUD
Retailer 7$453 AUD
Retailer 12$650 AUD
Retailer 10$671 AUD
Retailer 5$926 AUD
Retailer 8$950 AUD
Retailer 2$1,010 AUD
Retailer 3$1,220 AUD
Retailer 6$1,221 AUD
Retailer 9$1,284 AUD
MOH London$1,513 AUD

4 data points across 12 retailers

13 retailers$306 AUD to $1,513 AUD

A
Cheapest Retailer
-
$306 AUD
A
Retailer 2
-
$420 AUD
View
A
Retailer 3
-
$453 AUD
View
A
Retailer 4
-
$650 AUD
View
A
Retailer 5
-
$671 AUD
View
B+
Retailer 6
-
$926 AUD
View
B+
Retailer 7
-
$950 AUD
View
B+
Retailer 8
-
$1,010 AUD
View
B
Retailer 9
-
$1,220 AUD
View
B
Retailer 10
-
$1,221 AUD
View
B
Retailer 11
-
$1,243 AUD
View
B
Retailer 12
-
$1,284 AUD
View
Most Expensive
B
MOH London
LG851664807 · Nov 5
$1,513 AUD
£834 GBP
View
12 more retailers have this diamond
Prices start from $306 AUDSave up to $1,207 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
1.23ct Marquise
$306 AUD