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Marquise|Lab Grown|IGI

1.21ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG794610778

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG794610778

Diamond specifications and retailer prices

From $203 USD
As of November 4, 2026
Save $976 USD (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,179 USD at MOH London · As of November 2, 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 LG794610778 or 794610778. Listed at 21 retailers as of November 2, 2026, with prices from $203 to $1,179, a $976 spread on the same certified stone. MOH London lists it at $1,179. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794610778
Dimensions10.59 × 5.82 × 3.53 mm
L/W Ratio1.82
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.59 mm5.82 mm1.21 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794610778
Side View
Table 59.0%Crown 31.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.7%

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: $1,179 USD|Low: $196 USD|High: $1,199 USD|Avg: $623 USD|-1.7%
MOH London
Retailer 2
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Retailer 20
November 5, 2026
Retailer 5$203 USD
Retailer 4$227 USD
Retailer 17$236 USD
Retailer 9$252 USD
Retailer 18$435 USD
Retailer 10$437 USD
Retailer 12$442 USD
Retailer 14$458 USD
Retailer 20$525 USD
Retailer 3$571 USD
Retailer 16$614 USD
Retailer 11$660 USD
Retailer 15$662 USD
Retailer 2$693 USD
Retailer 19$811 USD
Retailer 6$819 USD
Retailer 8$864 USD
Retailer 7$866 USD
Retailer 13$960 USD
MOH London$1,179 USD

33 data points across 20 retailers

21 retailers$203 USD to $1,179 USD

A
Cheapest Retailer
-
$203 USD
A
Retailer 2
-
$227 USD
View
Final sale: no returns
A
Retailer 3
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$236 USD
View
A
Retailer 4
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$252 USD
View
Retailer 5
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$253 USD
View
Price last confirmed 12 days ago
A
Retailer 6
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$435 USD
View
A
Retailer 7
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$437 USD
View
A
Retailer 8
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$442 USD
View
A
Retailer 9
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$458 USD
View
B+
Retailer 10
-
$525 USD
View
B+
Retailer 11
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$571 USD
View
B+
Retailer 12
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$614 USD
View
B+
Retailer 13
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$660 USD
View
B+
Retailer 14
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$662 USD
View
B+
Retailer 15
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$693 USD
View
B+
Retailer 16
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$811 USD
View
B+
Retailer 17
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$819 USD
View
B+
Retailer 18
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$864 USD
View
B
Retailer 19
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$866 USD
View
B
Retailer 20
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$960 USD
View
Most Expensive
B
MOH London
LG794610778 · Nov 2
$1,179 USD
£928 GBP
View
20 more retailers have this diamond
Prices start from $203 USDSave up to $976 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
$203 USD