CaratHunter
Plans
Marquise|Lab Grown|IGI

3.90ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG844626484

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844626484

Diamond specifications and retailer prices

From $741 AUD
$519 USD
As of November 1, 2026
Save $2,991 AUD (80%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,731 AUD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.9ct lab-grown marquise diamond

This 3.9ct 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 LG844626484 or 844626484. Listed at 3 retailers as of October 28, 2026, with prices from $741 to $3,731, a $2,991 spread on the same certified stone. Rare Carat lists it at $3,731. 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

3.90
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844626484
Dimensions16.00 × 8.19 × 5.21 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.00 mm8.19 mm3.90 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844626484
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,731 AUD|Low: $741 AUD|High: $3,731 AUD|Avg: $1,972 AUD
Rare Carat
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$741 AUD
Retailer 2$1,423 AUD
Rare Carat$3,731 AUD

20 data points across 3 retailers

3 retailers$741 AUD to $3,731 AUD

A
Cheapest Retailer
-
$741 AUD
$519 USD
Final sale: no returns
A
Retailer 2
-
$1,423 AUD
£785 GBP
View
Most Expensive
B
Rare Carat
844626484 · Oct 28
$3,731 AUD
$2,615 USD
View
2 more retailers have this diamond
Prices start from $741 AUDSave up to $2,991 AUD

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
3.90ct Marquise
$741 AUD