Marquise|Lab Grown|IGI

3.91ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG818627954

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818627954

Diamond specifications and retailer prices

From €475 EUR
$533 USD
As of November 1, 2026
Save €434 EUR (48%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €3,620 EUR at Brilliant Earth · As of October 24, 2026
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 G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818627954 or 818627954. Listed at 4 retailers as of November 1, 2026, with a 91% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818627954
Dimensions16.79 × 8.22 × 5.06 mm
L/W Ratio2.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.79 mm8.22 mm3.91 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818627954
Side View
Table 62.0%Crown 34.8°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €3,620 EUR|Low: €469 EUR|High: €3,620 EUR|Avg: €1,869 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3€475 EUR
Retailer 2€909 EUR
Retailer 4€2,724 EUR
Brilliant Earth€3,620 EUR

37 data points across 4 retailers

4 retailers€475 EUR to €909 EUR

A
Cheapest Retailer
-
€475 EUR
$533 USD
Final sale: no returns
A
Retailer 2
-
€909 EUR
£803 GBP
View
Retailer 3
-
€2,724 EUR
$3,055 USD
View
Price last confirmed 15 days ago
Most Expensive
Brilliant Earth
21228203A · Oct 24
€3,620 EUR
$4,060 USD
View
Price last confirmed 8 days ago
3 more retailers have this diamond
Prices start from €475 EURSave up to €434 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
3.91ct Marquise
€475 EUR