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Marquise|Lab Grown|IGI

3.29ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG846658268

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846658268

Diamond specifications and retailer prices

From $608 AUD
$427 USD
As of October 29, 2026
Save $6,467 AUD (91%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $7,075 AUD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 3.29ct lab-grown marquise diamond

This 3.29ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG846658268 or 846658268. Listed at 3 retailers as of October 26, 2026, with prices from $608 to $7,075, a $6,467 spread on the same certified stone. Brilliant Earth lists it at $7,075. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.29
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846658268
Dimensions16.06 × 7.69 × 4.86 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
16.06 mm7.69 mm3.29 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846658268
Side View
Table 56.0%Crown 34.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $7,075 AUD|Low: $608 AUD|High: $7,075 AUD|Avg: $3,608 AUD
Brilliant Earth
Retailer 2
Retailer 3
October 26, 2026
Retailer 3$608 AUD
Retailer 2$1,121 AUD
Brilliant Earth$7,075 AUD

9 data points across 3 retailers

3 retailers$608 AUD to $7,075 AUD

A
Cheapest Retailer
-
$608 AUD
$427 USD
Final sale: no returns
A
Retailer 2
-
$1,121 AUD
£620 GBP
View
Most Expensive
B
Brilliant Earth
22179087A · Oct 26
$7,075 AUD
$4,970 USD
View
2 more retailers have this diamond
Prices start from $608 AUDSave up to $6,467 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
3.29ct Marquise
$608 AUD