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Marquise|Lab Grown|IGI

3.90ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG844632504

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844632504

Diamond specifications and retailer prices

From $889 NZD
$500 USD
As of November 3, 2026
Save $3,752 NZD (81%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,490 NZD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

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 LG844632504 or 844632504. Listed at 4 retailers as of October 28, 2026, with a 422% 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

3.90
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844632504
Dimensions17.16 × 8.21 × 4.96 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
17.16 mm8.21 mm3.90 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844632504
Side View
Table 62.0%Crown 35.1°Girdle: THN-MEDPavilion 40.3°Culet: NoneDepth 60.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: $1,667 NZD|Low: $889 NZD|High: $4,641 NZD|Avg: $1,918 NZD|-1.5%
Retailer 1
Retailer 2
Retailer 3
November 3, 2026
Retailer 3$889 NZD
Retailer 1$1,667 NZD
Retailer 2$4,641 NZD

20 data points across 3 retailers

4 retailers$889 NZD to $4,641 NZD

A
Cheapest Retailer
-
$889 NZD
$500 USD
Final sale: no returns
A
Retailer 2
-
$1,667 NZD
£738 GBP
View
B+
Retailer 3
-
$4,641 NZD
$2,610 USD
View
Most Expensive
Brilliant Earth
22149373A · Oct 26
$6,490 NZD
$3,650 USD
View
Price last confirmed 7 days ago
3 more retailers have this diamond
Prices start from $889 NZDSave up to $3,752 NZD

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
$889 NZD