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Marquise|Lab Grown|IGI

3.99ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG798611137

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG798611137

Diamond specifications and retailer prices

From €3,020 EUR
£2,657 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: €3,020 EUR at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

About this 3.99ct lab-grown marquise diamond

This 3.99ct 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 LG798611137 or 798611137. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.99
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG798611137
Dimensions16.42 × 8.31 × 5.10 mm
L/W Ratio1.98
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.42 mm8.31 mm3.99 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG798611137
Side View
Table 61.0%Crown 36°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: €3,020 EUR|Low: €855 EUR|High: €4,135 EUR|Avg: €2,259 EUR
Diamond Quarter
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
June 7, 2026
Retailer 2€856 EUR
Retailer 9€976 EUR
Retailer 8€1,079 EUR
Retailer 6€1,633 EUR
Retailer 4€1,812 EUR
Retailer 5€2,043 EUR
Diamond Quarter€3,020 EUR
Retailer 7€3,407 EUR
Retailer 3€4,135 EUR

12 data points across 9 retailers

1 retailer

B
Diamond Quarter
3.99VS1GLG77930CN · Oct 31
€3,020 EUR
£2,657 GBP
View

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
3.99ct Marquise
€3,020 EUR