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Marquise|Lab Grown|IGI

3.51ct F VS2 Marquise Lab Grown Diamond

ID • F/VS2 • IGI LG801603949

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG801603949

Diamond specifications and retailer prices

From $4,909 AUD
$3,440 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $4,909 AUD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 3.51ct lab-grown marquise diamond

This 3.51ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG801603949 or 801603949. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.51
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801603949
Dimensions15.21 × 7.99 × 5.04 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.21 mm7.99 mm3.51 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801603949
Side View
Table 62.0%Crown 35.1°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $1,440 AUD|Low: $1,440 AUD|High: $4,352 AUD|Avg: $1,913 AUD|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
June 6, 2026
Retailer 1$1,440 AUD
Retailer 4$1,580 AUD
Retailer 3$1,784 AUD
Retailer 2$4,352 AUD

6 data points across 4 retailers

1 retailer

B
Brilliant Earth
19716056AB · Nov 2
$4,909 AUD
$3,440 USD
View

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.

B
3.51ct Marquise
$4,909 AUD