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Marquise|Lab Grown|IGI

3.90ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG844632504

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844632504

Diamond specifications and retailer prices

From €448 EUR
$500 USD
As of October 31, 2026
Save €2,820 EUR (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €3,267 EUR at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 3.9ct lab-grown marquise diamond

This 3.9ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844632504 or 844632504. Listed at 4 retailers as of October 26, 2026, with prices from €448 to €3,267, a €2,820 spread on the same certified stone. Brilliant Earth lists it at €3,267. 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

3.90
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844632504
Dimensions17.16 × 8.21 × 4.96 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.16 mm8.21 mm3.90 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844632504
Side View
Table 62.0%Crown 35.1°Girdle: THN-MEDPavilion 40.3°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: €848 EUR|Low: €448 EUR|High: €2,336 EUR|Avg: €924 EUR|-0.5%
Retailer 1
Retailer 2
Retailer 3
November 1, 2026
Retailer 3€448 EUR
Retailer 1€848 EUR
Retailer 2€2,336 EUR

18 data points across 3 retailers

4 retailers€448 EUR to €3,267 EUR

A
Cheapest Retailer
-
€448 EUR
$500 USD
Final sale: no returns
A
Retailer 2
-
€848 EUR
£746 GBP
View
B+
Retailer 3
-
€2,336 EUR
$2,610 USD
View
Most Expensive
B
Brilliant Earth
22149373A · Oct 26
€3,267 EUR
$3,650 USD
View
3 more retailers have this diamond
Prices start from €448 EURSave up to €2,820 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
3.90ct Marquise
€448 EUR