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Marquise|Lab Grown|IGI

3.06ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG842651418

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG842651418

Diamond specifications and retailer prices

From $568 AUD
$399 USD
As of October 29, 2026
Save $3,375 AUD (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,943 AUD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 3.06ct lab-grown marquise diamond

This 3.06ct 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 LG842651418 or 842651418. Listed at 4 retailers as of October 26, 2026, with prices from $568 to $3,943, a $3,375 spread on the same certified stone. Brilliant Earth lists it at $3,943. 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

3.06
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842651418
Dimensions15.24 × 7.37 × 4.76 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.24 mm7.37 mm3.06 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842651418
Side View
Table 61.0%Crown 37.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,943 AUD|Low: $568 AUD|High: $3,943 AUD|Avg: $2,470 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 26, 2026
Retailer 3$568 AUD
Retailer 2$1,157 AUD
Retailer 4$3,082 AUD
Brilliant Earth$3,943 AUD

17 data points across 4 retailers

4 retailers$568 AUD to $3,943 AUD

A
Cheapest Retailer
-
$568 AUD
$399 USD
Final sale: no returns
A
Retailer 2
-
$1,157 AUD
£640 GBP
View
Retailer 3
-
$3,082 AUD
$2,165 USD
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
21744584A · Oct 26
$3,943 AUD
$2,770 USD
View
3 more retailers have this diamond
Prices start from $568 AUDSave up to $3,375 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
3.06ct Marquise
$568 AUD