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Marquise|Lab Grown|IGI

1.21ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG846666568

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846666568

Diamond specifications and retailer prices

From $194 USD
As of November 2, 2026
Save $932 USD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,126 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.21ct lab-grown marquise diamond

This 1.21ct 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 LG846666568 or 846666568. Listed at 10 retailers as of November 1, 2026, with prices from $194 to $1,126, a $932 spread on the same certified stone. MOH London lists it at $1,126. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846666568
Dimensions10.73 × 5.58 × 3.56 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.73 mm5.58 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846666568
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 63.8%

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 2
Current: $1,126 USD|Low: $194 USD|High: $1,133 USD|Avg: $599 USD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7$194 USD
Retailer 6$225 USD
Retailer 3$288 USD
Retailer 8$410 USD
Retailer 9$561 USD
Retailer 2$588 USD
Retailer 5$775 USD
Retailer 4$777 USD
Retailer 10$846 USD
MOH London$1,126 USD

10 data points across 10 retailers

10 retailers$194 USD to $1,126 USD

A
Cheapest Retailer
-
$194 USD
A
Retailer 2
-
$225 USD
View
A
Retailer 3
-
$288 USD
£227 GBP
View
Retailer 4
-
$410 USD
€390 EUR
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$561 USD
View
B+
Retailer 6
-
$588 USD
A$904 AUD
View
B+
Retailer 7
-
$775 USD
View
B+
Retailer 8
-
$777 USD
View
B
Retailer 9
-
$846 USD
View
Most Expensive
B
MOH London
LG846666568 · Nov 1
$1,126 USD
£887 GBP
View
9 more retailers have this diamond
Prices start from $194 USDSave up to $932 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
1.21ct Marquise
$194 USD