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Marquise|Lab Grown|IGI

1.23ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG791647824

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG791647824

Diamond specifications and retailer prices

From $402 USD
As of November 4, 2026
Save $665 USD (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,067 USD at MOH London · As of November 2, 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 LG791647824 or 791647824. Listed at 7 retailers as of November 2, 2026, with prices from $402 to $1,067, a $665 spread on the same certified stone. MOH London lists it at $1,067. 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
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.3°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791647824
Dimensions11.84 × 5.47 × 3.33 mm
L/W Ratio2.16
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.84 mm5.47 mm1.23 ctF / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG791647824
Side View
Table 55.0%Crown 35.3°Girdle: THN-MEDPavilion 39.6°Culet: NoneDepth 60.9%

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 4
Current: $1,067 USD|Low: $381 USD|High: $1,091 USD|Avg: $616 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 4, 2026
Retailer 3$402 USD
Retailer 2$408 USD
Retailer 5$447 USD
Retailer 4$551 USD
Retailer 7$665 USD
Retailer 6$787 USD
MOH London$1,067 USD

39 data points across 7 retailers

7 retailers$402 USD to $1,067 USD

A
Cheapest Retailer
-
$402 USD
A
Retailer 2
-
$408 USD
View
A
Retailer 3
-
$447 USD
View
B+
Retailer 4
-
$551 USD
View
B+
Retailer 5
-
$665 USD
View
B+
Retailer 6
-
$787 USD
View
Most Expensive
B
MOH London
LG791647824 · Nov 2
$1,067 USD
£840 GBP
View
6 more retailers have this diamond
Prices start from $402 USDSave up to $665 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
1.23ct Marquise
$402 USD