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Marquise|Lab Grown|IGI

3.03ct F SI1 Marquise Lab Grown Diamond

VG • F/SI1 • IGI LG840651032

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840651032

Diamond specifications and retailer prices

From $540 AUD
As of November 6, 2026
Save $3,419 AUD (86%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,959 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 3.03ct lab-grown marquise diamond

This 3.03ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG840651032 or 840651032. Listed at 3 retailers as of November 4, 2026, with prices from $540 to $3,959, a $3,419 spread on the same certified stone. Brilliant Earth lists it at $3,959. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.03
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840651032
Dimensions15.37 × 7.54 × 4.63 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
15.37 mm7.54 mm3.03 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840651032
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $3,959 AUD|Low: $540 AUD|High: $6,564 AUD|Avg: $2,811 AUD|-39.7%
Brilliant Earth
Retailer 2
Retailer 3
November 4, 2026
Retailer 3$540 AUD
Retailer 2$1,103 AUD
Brilliant Earth$3,959 AUD

30 data points across 3 retailers

3 retailers$540 AUD to $3,959 AUD

A
Cheapest Retailer
-
$540 AUD
Final sale: no returns
A
Retailer 2
-
$1,103 AUD
View
Most Expensive
B
Brilliant Earth
21612582A · Nov 4
$3,959 AUD
$2,720 USD
View
2 more retailers have this diamond
Prices start from $540 AUDSave up to $3,419 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
3.03ct Marquise
$540 AUD