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Marquise|Lab Grown|IGI

1.23ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG758554277

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG758554277

Diamond specifications and retailer prices

From $439 USD
As of November 4, 2026
Save $743 USD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,182 USD 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 LG758554277 or 758554277. Listed at 7 retailers as of November 4, 2026, with prices from $439 to $1,182, a $743 spread on the same certified stone. MOH London lists it at $1,182. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758554277
Dimensions10.82 × 5.72 × 3.49 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.82 mm5.72 mm1.23 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758554277
Side View
Table 61.0%Crown 36.4°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 61.0%

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 4
Current: $1,182 USD|Low: $423 USD|High: $1,198 USD|Avg: $632 USD|+13.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6$439 USD
Retailer 4$454 USD
Retailer 2$461 USD
Retailer 5$498 USD
Retailer 3$675 USD
Retailer 7$868 USD
MOH London$1,182 USD

42 data points across 7 retailers

7 retailers$439 USD to $1,182 USD

A
Cheapest Retailer
-
$439 USD
A
Retailer 2
-
$454 USD
View
A
Retailer 3
-
$461 USD
View
A
Retailer 4
-
$498 USD
View
B+
Retailer 5
-
$675 USD
View
B
Retailer 6
-
$868 USD
View
Most Expensive
B
MOH London
LG758554277 · Nov 5
$1,182 USD
£931 GBP
View
6 more retailers have this diamond
Prices start from $439 USDSave up to $743 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
$439 USD