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Marquise|Lab Grown|IGI

3.31ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG845657227

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845657227

Diamond specifications and retailer prices

From $618 AUD
$434 USD
As of November 1, 2026
Save $3,795 AUD (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $4,413 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.31ct lab-grown marquise diamond

This 3.31ct 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 LG845657227 or 845657227. Listed at 4 retailers as of October 30, 2026, with prices from $618 to $4,413, a $3,795 spread on the same certified stone. Brilliant Earth lists it at $4,413. 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

3.31
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845657227
Dimensions16.13 × 7.73 × 4.74 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
16.13 mm7.73 mm3.31 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845657227
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $4,413 AUD|Low: $618 AUD|High: $4,413 AUD|Avg: $2,044 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 3$618 AUD
Retailer 2$1,165 AUD
Retailer 4$3,815 AUD
Brilliant Earth$4,413 AUD

13 data points across 4 retailers

4 retailers$618 AUD to $4,413 AUD

A
Cheapest Retailer
-
$618 AUD
$434 USD
Final sale: no returns
A
Retailer 2
-
$1,165 AUD
£645 GBP
View
B
Retailer 3
-
$3,815 AUD
$2,680 USD
View
Most Expensive
B
Brilliant Earth
22309145A · Oct 30
$4,413 AUD
$3,100 USD
View
3 more retailers have this diamond
Prices start from $618 AUDSave up to $3,795 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
3.31ct Marquise
$618 AUD