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Cushion|Lab Grown|IGI

3.03ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG668409647

Shape and cutting style on the report: Cushion modified brilliant cut

Certificate IGI LG668409647

Diamond specifications and retailer prices

From $511 AUD
$359 USD
As of October 30, 2026
Save $4,770 AUD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,282 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.03ct lab-grown cushion diamond

This 3.03ct lab-grown cushion 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 LG668409647 or 668409647. Listed at 10 retailers as of October 29, 2026, with prices from $511 to $5,282, a $4,770 spread on the same certified stone. Brilliant Earth lists it at $5,282. 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

3.03
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668409647
Dimensions9.18 × 7.52 × 5.18 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.18 mm7.52 mm3.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG668409647
Side View
Table 59.0%Crown 38.1°Girdle: STK-VTKPavilion 32.8°Culet: NoneDepth 68.9%

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: $5,282 AUD|Low: $511 AUD|High: $5,282 AUD|Avg: $1,513 AUD|+7.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$511 AUD
Retailer 9$582 AUD
Retailer 8$883 AUD
Retailer 5$930 AUD
Retailer 2$1,018 AUD
Retailer 6$1,019 AUD
Retailer 4$1,026 AUD
Retailer 3$1,388 AUD
Retailer 7$2,347 AUD
Brilliant Earth$5,282 AUD

42 data points across 10 retailers

10 retailers$511 AUD to $5,282 AUD

A
Cheapest Retailer
-
$511 AUD
$359 USD
Final sale: no returns
A
Retailer 2
-
$582 AUD
$409 USD
View
A
Retailer 3
-
$883 AUD
$620 USD
View
B+
Retailer 4
-
$930 AUD
$653 USD
View
A
Retailer 5
-
$1,018 AUD
£563 GBP
View
A
Retailer 6
-
$1,019 AUD
€682 EUR
View
A
Retailer 7
-
$1,026 AUD
$721 USD
View
A
Retailer 8
-
$1,388 AUD
$975 USD
View
B+
Retailer 9
-
$2,347 AUD
£1,298 GBP
View
Most Expensive
B
Brilliant Earth
13161186A · Oct 29
$5,282 AUD
$3,710 USD
View
9 more retailers have this diamond
Prices start from $511 AUDSave up to $4,770 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 Cushion
$511 AUD