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Marquise|Lab Grown|IGI

3.31ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG845657227

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845657227

Diamond specifications and retailer prices

From €388 EUR
$434 USD
As of October 31, 2026
Save €2,386 EUR (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €2,775 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.31ct lab-grown marquise diamond

This 3.31ct 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 LG845657227 or 845657227. Listed at 4 retailers as of October 30, 2026, with prices from €388 to €2,775, a €2,386 spread on the same certified stone. Brilliant Earth lists it at €2,775. 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

3.31
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845657227
Dimensions16.13 × 7.73 × 4.74 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
16.13 mm7.73 mm3.31 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845657227
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: €2,775 EUR|Low: €388 EUR|High: €2,775 EUR|Avg: €1,285 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 3€388 EUR
Retailer 2€733 EUR
Retailer 4€2,399 EUR
Brilliant Earth€2,775 EUR

13 data points across 4 retailers

4 retailers€388 EUR to €2,775 EUR

A
Cheapest Retailer
-
€388 EUR
$434 USD
Final sale: no returns
A
Retailer 2
-
€733 EUR
£645 GBP
View
B
Retailer 3
-
€2,399 EUR
$2,680 USD
View
Most Expensive
B
Brilliant Earth
22309145A · Oct 30
€2,775 EUR
$3,100 USD
View
3 more retailers have this diamond
Prices start from €388 EURSave up to €2,386 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
3.31ct Marquise
€388 EUR