Marquise|Lab Grown|IGI

3.91ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG818627954

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818627954

Diamond specifications and retailer prices

From $735 CAD
$526 USD
As of October 31, 2026
Save $4,937 CAD (87%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $5,671 CAD at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 3.91ct lab-grown marquise diamond

This 3.91ct 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 LG818627954 or 818627954. Listed at 4 retailers as of October 24, 2026, with prices from $735 to $5,671, a $4,937 spread on the same certified stone. Brilliant Earth lists it at $5,671. 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

3.91
Carat
G
Color
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818627954
Dimensions16.79 × 8.22 × 5.06 mm
L/W Ratio2.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.79 mm8.22 mm3.91 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818627954
Side View
Table 62.0%Crown 34.8°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $5,671 CAD|Low: $735 CAD|High: $5,671 CAD|Avg: $2,900 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 3$735 CAD
Retailer 2$1,412 CAD
Retailer 4$4,268 CAD
Brilliant Earth$5,671 CAD

36 data points across 4 retailers

4 retailers$735 CAD to $5,671 CAD

A
Cheapest Retailer
-
$735 CAD
$526 USD
Final sale: no returns
A
Retailer 2
-
$1,412 CAD
£796 GBP
View
Retailer 3
-
$4,268 CAD
$3,055 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
21228203A · Oct 24
$5,671 CAD
$4,060 USD
View
3 more retailers have this diamond
Prices start from $735 CADSave up to $4,937 CAD

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
3.91ct Marquise
$735 CAD