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Marquise|Lab Grown|IGI

1.21ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG831685819

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831685819

Diamond specifications and retailer prices

From €323 EUR
$362 USD
As of October 30, 2026
Save €340 EUR (51%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €663 EUR at Novita Diamonds · As of October 28, 2026
View at Novita Diamonds

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 LG831685819 or 831685819. Listed at 7 retailers as of October 28, 2026, with prices from €323 to €663, a €340 spread on the same certified stone. Novita Diamonds lists it at €663. 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 angle35.2°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831685819
Dimensions10.77 × 5.56 × 3.54 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.77 mm5.56 mm1.21 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831685819
Side View
Table 61.0%Crown 35.2°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 63.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €663 EUR|Low: €323 EUR|High: €707 EUR|Avg: €445 EUR
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 3€323 EUR
Retailer 5€326 EUR
Retailer 8€344 EUR
Retailer 6€359 EUR
Retailer 7€385 EUR
Retailer 4€467 EUR
Retailer 9€493 EUR
Retailer 2€587 EUR
Novita Diamonds€663 EUR
Retailer 10€707 EUR

13 data points across 10 retailers

7 retailers€323 EUR to €663 EUR

A
Cheapest Retailer
-
€323 EUR
$362 USD
A
Retailer 2
-
€326 EUR
$365 USD
View
A
Retailer 3
-
€359 EUR
$403 USD
View
B+
Retailer 4
-
€467 EUR
View
B+
Retailer 5
-
€528 EUR
$592 USD
View
Retailer 6
-
€597 EUR
$670 USD
View
Price last confirmed 33 days ago
Most Expensive
B+
Novita Diamonds
cert_831685819 · Oct 28
€663 EUR
A$1,144 AUD
View
6 more retailers have this diamond
Prices start from €323 EURSave up to €340 EUR

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
€323 EUR