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Marquise|Lab Grown|IGI

3.98ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG840636870

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840636870

Diamond specifications and retailer prices

From €483 EUR
$542 USD
As of November 1, 2026
Save €3,199 EUR (87%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €3,682 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.98ct lab-grown marquise diamond

This 3.98ct 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 LG840636870 or 840636870. Listed at 4 retailers as of October 30, 2026, with prices from €483 to €3,682, a €3,199 spread on the same certified stone. Brilliant Earth lists it at €3,682. 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

3.98
Carat
G
Color
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840636870
Dimensions15.81 × 8.30 × 5.25 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.81 mm8.30 mm3.98 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840636870
Side View
Table 61.0%Crown 37.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €3,682 EUR|Low: €477 EUR|High: €3,682 EUR|Avg: €2,096 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3€483 EUR
Retailer 2€917 EUR
Retailer 4€2,773 EUR
Brilliant Earth€3,682 EUR

27 data points across 4 retailers

4 retailers€483 EUR to €3,682 EUR

A
Cheapest Retailer
-
€483 EUR
$542 USD
Final sale: no returns
A
Retailer 2
-
€917 EUR
£810 GBP
View
B
Retailer 3
-
€2,773 EUR
$3,110 USD
View
Most Expensive
B
Brilliant Earth
21623000A · Oct 30
€3,682 EUR
$4,130 USD
View
3 more retailers have this diamond
Prices start from €483 EURSave up to €3,199 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
3.98ct Marquise
€483 EUR