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Marquise|Lab Grown|IGI

1.23ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG816614181

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816614181

Diamond specifications and retailer prices

From $274 USD
As of November 5, 2026
Save $800 USD (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,074 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 LG816614181 or 816614181. Listed at 14 retailers as of November 5, 2026, with prices from $274 to $1,074, a $800 spread on the same certified stone. MOH London lists it at $1,074. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816614181
Dimensions11.97 × 5.40 × 3.39 mm
L/W Ratio2.22
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.97 mm5.40 mm1.23 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816614181
Side View
Table 60.0%Crown 32.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.8%

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 5
Current: $1,074 USD|Low: $274 USD|High: $1,230 USD|Avg: $613 USD|-4.2%
MOH London
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
November 5, 2026
Retailer 2$274 USD
Retailer 3$312 USD
Retailer 9$397 USD
Retailer 7$413 USD
Retailer 6$415 USD
Retailer 12$447 USD
Retailer 10$550 USD
Retailer 8$562 USD
Retailer 14$655 USD
Retailer 5$686 USD
Retailer 4$755 USD
Retailer 13$794 USD
Retailer 11$820 USD
MOH London$1,074 USD

39 data points across 14 retailers

14 retailers$274 USD to $1,074 USD

A
Cheapest Retailer
-
$274 USD
B+
Retailer 2
-
$312 USD
View
A
Retailer 3
-
$397 USD
View
A
Retailer 4
-
$413 USD
View
Retailer 5
-
$415 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$447 USD
View
A
Retailer 7
-
$550 USD
View
A
Retailer 8
-
$562 USD
View
B+
Retailer 9
-
$655 USD
View
Retailer 10
-
$686 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$755 USD
View
B+
Retailer 12
-
$794 USD
View
B+
Retailer 13
-
$820 USD
View
Most Expensive
B
MOH London
LG816614181 · Nov 5
$1,074 USD
£846 GBP
View
13 more retailers have this diamond
Prices start from $274 USDSave up to $800 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
$274 USD