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Cushion|Lab Grown|IGI

3.01ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG487187869

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

Certificate IGI LG487187869

Diamond specifications and retailer prices

From $1,315 NZD
As of November 6, 2026
Save $3,321 NZD (72%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,636 NZD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.01ct lab-grown cushion diamond

This 3.01ct 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 LG487187869 or 487187869. Listed at 9 retailers as of November 6, 2026, with prices from $1,315 to $4,636, a $3,321 spread on the same certified stone. Brilliant Earth lists it at $4,636. 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

3.01
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487187869
Dimensions8.45 × 8.19 × 5.53 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.45 mm8.19 mm3.01 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487187869
Side View
Table 59.0%Crown 37.5°Girdle: MED-VTKPavilion 38.9°Culet: NoneDepth 67.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $4,636 NZD|Low: $924 NZD|High: $5,123 NZD|Avg: $2,267 NZD|-9.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 10$924 NZD
Retailer 4$1,344 NZD
Retailer 9$1,389 NZD
Retailer 6$1,447 NZD
Retailer 8$1,470 NZD
Retailer 5$1,568 NZD
Retailer 2$1,669 NZD
Retailer 3$3,781 NZD
Retailer 7$3,786 NZD
Brilliant Earth$4,636 NZD

31 data points across 10 retailers

9 retailers$1,315 NZD to $4,636 NZD

A
Cheapest Retailer
-
$1,315 NZD
Retailer 2
-
$1,344 NZD
View
Price last confirmed 14 days ago
Retailer 3
-
$1,389 NZD
View
Price last confirmed 14 days ago
Retailer 4
-
$1,447 NZD
View
Price last confirmed 16 days ago
Retailer 5
-
$1,669 NZD
View
Price last confirmed 14 days ago
Retailer 6
-
$3,557 NZD
View
Price last confirmed 16 days ago
Retailer 7
-
$3,781 NZD
View
Price last confirmed 16 days ago
Retailer 8
-
$3,786 NZD
View
Price last confirmed 16 days ago
Most Expensive
B
Brilliant Earth
5500654B · Nov 6
$4,636 NZD
$2,570 USD
View
8 more retailers have this diamond
Prices start from $1,315 NZDSave up to $3,321 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
3.01ct Cushion
$1,315 NZD