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Marquise|Lab Grown|IGI

3.06ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG840646320

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840646320

Diamond specifications and retailer prices

From $1,081 AUD
$759 USD
As of October 30, 2026
Save $1,588 AUD (60%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,669 AUD at MOH London · As of October 29, 2026
View at MOH London

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 LG840646320 or 840646320. Listed at 6 retailers as of October 29, 2026, with prices from $1,081 to $2,669, a $1,588 spread on the same certified stone. MOH London lists it at $2,669. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.6°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840646320
Dimensions15.13 × 7.99 × 4.42 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.13 mm7.99 mm3.06 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840646320
Side View
Table 61.0%Crown 30.6°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 55.3%

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 30
Current: $2,669 AUD|Low: $1,061 AUD|High: $2,687 AUD|Avg: $1,629 AUD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 6$1,081 AUD
Retailer 3$1,097 AUD
Retailer 2$1,230 AUD
Retailer 4$1,439 AUD
Retailer 5$2,237 AUD
MOH London$2,669 AUD

27 data points across 6 retailers

6 retailers$1,081 AUD to $2,669 AUD

B+
Cheapest Retailer
-
$1,081 AUD
$759 USD
A
Retailer 2
-
$1,097 AUD
€734 EUR
View
A
Retailer 3
-
$1,230 AUD
£680 GBP
View
A
Retailer 4
-
$1,439 AUD
$1,011 USD
View
B+
Retailer 5
-
$2,237 AUD
$1,572 USD
View
Most Expensive
B
MOH London
LG840646320 · Oct 29
$2,669 AUD
£1,476 GBP
View
5 more retailers have this diamond
Prices start from $1,081 AUDSave up to $1,588 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
$1,081 AUD