Marquise|Lab Grown|IGI

3.99ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG842633491

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG842633491

Diamond specifications and retailer prices

From $543 USD
As of October 31, 2026
Save $497 USD (48%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $4,150 USD at Brilliant Earth · As of October 22, 2026
View at Brilliant Earth

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 VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG842633491 or 842633491. Listed at 4 retailers as of October 31, 2026, with a 92% 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

3.99
Carat
G
Color
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842633491
Dimensions16.92 × 8.20 × 5.14 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.92 mm8.20 mm3.99 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842633491
Side View
Table 61.0%Crown 34.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $4,150 USD|Low: $536 USD|High: $4,150 USD|Avg: $2,391 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 3$543 USD
Retailer 2$1,040 USD
Retailer 4$3,120 USD
Brilliant Earth$4,150 USD

23 data points across 4 retailers

4 retailers$543 USD to $1,040 USD

A
Cheapest Retailer
-
$543 USD
Final sale: no returns
A
Retailer 2
-
$1,040 USD
£819 GBP
View
Retailer 3
-
$3,120 USD
View
Price last confirmed 13 days ago
Most Expensive
Brilliant Earth
21704534A · Oct 22
$4,150 USD
View
Price last confirmed 9 days ago
3 more retailers have this diamond
Prices start from $543 USDSave up to $497 USD

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
3.99ct Marquise
$543 USD