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Marquise|Lab Grown|IGI

3.91ct F VS2 Marquise Lab Grown Diamond

ID • F/VS2 • IGI LG811691081

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811691081

Diamond specifications and retailer prices

From €3,548 EUR
$3,980 USD
As of November 2, 2026
2 retailers carry this diamond
Most expensive: €3,548 EUR at Brilliant Earth
View at Brilliant Earth

About this 3.91ct lab-grown marquise diamond

This 3.91ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG811691081 or 811691081. Listed at 2 retailers as of November 2, 2026. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.91
Carat
F
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811691081
Dimensions16.60 × 8.07 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.60 mm8.07 mm3.91 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811691081
Side View
Table 60.0%Crown 35.7°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 63.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: €3,548 EUR|Low: €691 EUR|High: €6,036 EUR|Avg: €2,241 EUR|-41.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
August 27, 2026
Retailer 6€783 EUR
Retailer 4€820 EUR
Retailer 3€906 EUR
Retailer 7€1,361 EUR
Retailer 2€1,410 EUR
Retailer 5€1,861 EUR
Retailer 8€2,311 EUR
Retailer 9€2,429 EUR
Retailer 10€2,938 EUR
Brilliant Earth€3,548 EUR

30 data points across 10 retailers

2 retailers

Retailer 1
-
€2,429 EUR
A$4,191 AUD
Price last confirmed 122 days ago
Most Expensive
B
Brilliant Earth
20313414A · Nov 2
€3,548 EUR
$3,980 USD
View
1 more retailer has this diamond

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.

B
3.91ct Marquise
€3,548 EUR