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Cushion|Lab Grown|IGI

3.05ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG693508842

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG693508842

Diamond specifications and retailer prices

From $1,290 NZD
As of November 5, 2026
Save $5,204 NZD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,494 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 LG693508842 or 693508842. Listed at 11 retailers as of November 4, 2026, with prices from $1,290 to $6,494, a $5,204 spread on the same certified stone. Brilliant Earth lists it at $6,494. 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 angle36.4°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG693508842
Dimensions8.43 × 8.34 × 5.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.43 mm8.34 mm3.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG693508842
Side View
Table 63.0%Crown 36.4°Girdle: MED-STKPavilion 39°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,494 NZD|Low: $915 NZD|High: $6,584 NZD|Avg: $2,421 NZD|-1.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 7$915 NZD
Retailer 9$1,126 NZD
Retailer 10$1,290 NZD
Retailer 6$1,329 NZD
Retailer 3$1,447 NZD
Retailer 5$1,481 NZD
Retailer 12$1,598 NZD
Retailer 4$1,829 NZD
Retailer 2$3,566 NZD
Retailer 8$3,581 NZD
Retailer 11$4,331 NZD
Brilliant Earth$6,494 NZD

27 data points across 12 retailers

11 retailers$1,290 NZD to $6,494 NZD

Retailer 1
-
$915 NZD
Price last confirmed 12 days ago
A
Retailer 2
-
$1,290 NZD
View
A
Retailer 3
-
$1,329 NZD
View
B+
Retailer 4
-
$1,447 NZD
View
A
Retailer 5
-
$1,481 NZD
View
A
Retailer 6
-
$1,598 NZD
View
A
Retailer 7
-
$1,829 NZD
View
B+
Retailer 8
-
$3,566 NZD
View
B
Retailer 9
-
$3,581 NZD
View
B
Retailer 10
-
$4,331 NZD
View
Most Expensive
B
Brilliant Earth
13577120A · Nov 4
$6,494 NZD
$3,600 USD
View
10 more retailers have this diamond
Prices start from $1,290 NZDSave up to $5,204 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
$1,290 NZD