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Cushion|Lab Grown|IGI

3.09ct E VS2 Cushion Lab Grown Diamond

ID • E/VS2 • IGI LG657418549

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG657418549

Diamond specifications and retailer prices

From $1,278 NZD
£567 GBP
As of October 30, 2026
Save $6,742 NZD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,020 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG657418549 or 657418549. Listed at 13 retailers as of October 30, 2026, with prices from $1,278 to $8,020, a $6,742 spread on the same certified stone. Brilliant Earth lists it at $8,020. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
E
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657418549
Dimensions8.58 × 8.45 × 5.53 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.58 mm8.45 mm3.09 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657418549
Side View
Table 61.0%Crown 35.8°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 65.4%

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: Oct 30
Current: $8,020 NZD|Low: $917 NZD|High: $9,563 NZD|Avg: $2,768 NZD|-16.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 4$1,065 NZD
Retailer 2$1,278 NZD
Retailer 10$1,490 NZD
Retailer 7$1,539 NZD
Retailer 3$1,659 NZD
Retailer 11$1,725 NZD
Retailer 6$1,769 NZD
Retailer 12$2,193 NZD
Retailer 13$3,473 NZD
Retailer 5$3,985 NZD
Retailer 9$4,205 NZD
Retailer 8$4,450 NZD
Brilliant Earth$8,020 NZD

33 data points across 13 retailers

13 retailers$1,278 NZD to $8,020 NZD

Retailer 1
-
$1,065 NZD
$600 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$1,278 NZD
£567 GBP
View
A
Retailer 3
-
$1,490 NZD
$840 USD
View
A
Retailer 4
-
$1,539 NZD
€826 EUR
View
A
Retailer 5
-
$1,659 NZD
$935 USD
View
A
Retailer 6
-
$1,725 NZD
$972 USD
View
A
Retailer 7
-
$1,769 NZD
£785 GBP
View
A
Retailer 8
-
$2,193 NZD
$1,236 USD
View
Retailer 9
-
$3,473 NZD
$1,957 USD
View
Price last confirmed 12 days ago
B+
Retailer 10
-
$3,985 NZD
$2,246 USD
View
Retailer 11
-
$4,205 NZD
$2,370 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$4,450 NZD
£1,975 GBP
View
Most Expensive
B
Brilliant Earth
11925065A · Oct 30
$8,020 NZD
$4,520 USD
View
12 more retailers have this diamond
Prices start from $1,278 NZDSave up to $6,742 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
3.09ct Cushion
$1,278 NZD