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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 $648 NZD
As of November 6, 2026
Save $5,883 NZD (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,530 NZD at Brilliant Earth · As of November 6, 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 11 retailers as of November 6, 2026, with prices from $648 to $6,530, a $5,883 spread on the same certified stone. Brilliant Earth lists it at $6,530. 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: Nov 6
Current: $6,530 NZD|Low: $648 NZD|High: $6,692 NZD|Avg: $1,846 NZD|-1.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 3$648 NZD
Retailer 2$727 NZD
Retailer 7$1,001 NZD
Retailer 11$1,178 NZD
Retailer 8$1,279 NZD
Retailer 6$1,288 NZD
Retailer 10$1,301 NZD
Retailer 9$1,759 NZD
Retailer 5$2,500 NZD
Retailer 4$2,899 NZD
Brilliant Earth$6,530 NZD

44 data points across 11 retailers

11 retailers$648 NZD to $6,530 NZD

A
Cheapest Retailer
-
$648 NZD
Final sale: no returns
A
Retailer 2
-
$727 NZD
View
A
Retailer 3
-
$1,001 NZD
View
B+
Retailer 4
-
$1,178 NZD
View
A
Retailer 5
-
$1,279 NZD
View
A
Retailer 6
-
$1,288 NZD
View
A
Retailer 7
-
$1,301 NZD
View
A
Retailer 8
-
$1,759 NZD
View
B+
Retailer 9
-
$2,500 NZD
View
B+
Retailer 10
-
$2,899 NZD
View
Most Expensive
B
Brilliant Earth
13161186A · Nov 6
$6,530 NZD
$3,620 USD
View
10 more retailers have this diamond
Prices start from $648 NZDSave up to $5,883 NZD

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
$648 NZD