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Cushion|Lab Grown|IGI

3.05ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG671479495

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG671479495

Diamond specifications and retailer prices

From $1,136 NZD
As of November 6, 2026
Save $7,883 NZD (87%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $9,020 NZD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 3.05ct lab-grown cushion diamond

This 3.05ct 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 LG671479495 or 671479495. Listed at 8 retailers as of November 6, 2026, with prices from $1,136 to $9,020, a $7,883 spread on the same certified stone. Do Amore Diamonds lists it at $9,020. 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

3.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671479495
Dimensions8.64 × 8.42 × 5.48 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.64 mm8.42 mm3.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671479495
Side View
Table 66.0%Crown 33.7°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 65.1%

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: $2,157 NZD|Low: $1,136 NZD|High: $3,750 NZD|Avg: $2,202 NZD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$1,136 NZD
Retailer 2$1,497 NZD
Retailer 7$1,566 NZD
Retailer 4$1,894 NZD
Retailer 1$2,157 NZD
Retailer 5$3,548 NZD
Retailer 3$3,554 NZD

14 data points across 7 retailers

8 retailers$1,136 NZD to $9,020 NZD

A
Cheapest Retailer
-
$1,136 NZD
Final sale: no returns
A
Retailer 2
-
$1,497 NZD
View
A
Retailer 3
-
$1,566 NZD
View
A
Retailer 4
-
$1,894 NZD
View
B+
Retailer 5
-
$2,157 NZD
View
B+
Retailer 6
-
$3,548 NZD
View
B
Retailer 7
-
$3,554 NZD
View
Most Expensive
B
Do Amore Diamonds
27-27E6388C2 · Nov 6
$9,020 NZD
$5,000 USD
View
7 more retailers have this diamond
Prices start from $1,136 NZDSave up to $7,883 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
3.05ct Cushion
$1,136 NZD