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Cushion|Lab Grown|IGI

3.06ct E SI2 Cushion Lab Grown Diamond

ID • E/SI2 • IGI LG743506423

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG743506423

Diamond specifications and retailer prices

From $478 AUD
$336 USD
As of October 27, 2026
Save $4,674 AUD (91%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,153 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.06ct lab-grown cushion diamond

This 3.06ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG743506423 or 743506423. Listed at 13 retailers as of October 27, 2026, with prices from $478 to $5,153, a $4,674 spread on the same certified stone. Brilliant Earth lists it at $5,153. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743506423
Dimensions9.73 × 7.27 × 4.88 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.73 mm7.27 mm3.06 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743506423
Side View
Table 63.0%Crown 34.7°Girdle: MED-STKPavilion 34.5°Culet: NoneDepth 67.1%

Caratlytics Score

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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 27
Current: $5,153 AUD|Low: $478 AUD|High: $5,153 AUD|Avg: $1,484 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 6$478 AUD
Retailer 5$583 AUD
Retailer 8$711 AUD
Retailer 2$825 AUD
Retailer 13$865 AUD
Retailer 9$936 AUD
Retailer 4$988 AUD
Retailer 3$1,319 AUD
Retailer 12$1,372 AUD
Retailer 14$1,534 AUD
Retailer 7$1,672 AUD
Retailer 10$2,129 AUD
Retailer 11$2,783 AUD
Brilliant Earth$5,153 AUD

42 data points across 14 retailers

13 retailers$478 AUD to $5,153 AUD

A
Cheapest Retailer
-
$478 AUD
$336 USD
Final sale: no returns
A
Retailer 2
-
$583 AUD
HK$3,200 HKD
View
A
Retailer 3
-
$711 AUD
£393 GBP
View
A
Retailer 4
-
$825 AUD
€552 EUR
View
B+
Retailer 5
-
$865 AUD
$608 USD
View
A
Retailer 6
-
$936 AUD
£518 GBP
View
A
Retailer 7
-
$988 AUD
$694 USD
View
A
Retailer 8
-
$1,319 AUD
$927 USD
View
B+
Retailer 9
-
$1,372 AUD
$964 USD
View
B+
Retailer 10
-
$1,672 AUD
SGD 1,587 SGD
View
B+
Retailer 11
-
$2,129 AUD
£1,178 GBP
View
B+
Retailer 12
-
$2,783 AUD
$1,955 USD
View
Most Expensive
B
Brilliant Earth
16747395A · Oct 29
$5,153 AUD
$3,620 USD
View
12 more retailers have this diamond
Prices start from $478 AUDSave up to $4,674 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 Cushion
$478 AUD