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Cushion|Lab Grown|IGI

4.59ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG819642918

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG819642918

Diamond specifications and retailer prices

From $5,099 NZD
£2,263 GBP
As of October 30, 2026
Save $17,339 NZD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $22,438 NZD at With Clarity · As of October 30, 2026
View at With Clarity

About this 4.59ct lab-grown cushion diamond

This 4.59ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG819642918 or 819642918. Listed at 17 retailers as of October 30, 2026, with prices from $5,099 to $22,438, a $17,339 spread on the same certified stone. With Clarity lists it at $22,438. 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

4.59
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819642918
Dimensions11.79 × 8.39 × 5.67 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.79 mm8.39 mm4.59 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819642918
Side View
Table 61.0%Crown 39.6°Girdle: STK-VTKPavilion 34.3°Culet: NoneDepth 67.6%

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: $5,099 NZD|Low: $5,081 NZD|High: $22,438 NZD|Avg: $11,190 NZD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
With Clarity
October 30, 2026
Retailer 1$5,099 NZD
Retailer 3$6,104 NZD
Retailer 4$6,176 NZD
Retailer 2$6,387 NZD
Retailer 7$6,457 NZD
Retailer 9$8,247 NZD
Retailer 13$8,721 NZD
Retailer 11$9,758 NZD
Retailer 8$10,519 NZD
Retailer 6$11,593 NZD
Retailer 16$12,819 NZD
Retailer 10$12,991 NZD
Retailer 14$13,096 NZD
Retailer 15$14,610 NZD
Retailer 12$15,553 NZD
Retailer 5$21,246 NZD
With Clarity$22,438 NZD

30 data points across 17 retailers

17 retailers$5,099 NZD to $22,438 NZD

A
Cheapest Retailer
-
$5,099 NZD
£2,263 GBP
Retailer 2
-
$6,104 NZD
$3,440 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$6,176 NZD
$3,481 USD
View
A
Retailer 4
-
$6,387 NZD
$3,600 USD
View
A
Retailer 5
-
$6,457 NZD
$3,639 USD
View
Final sale: no returns
A
Retailer 6
-
$8,247 NZD
£3,660 GBP
View
A
Retailer 7
-
$8,721 NZD
$4,915 USD
View
A
Retailer 8
-
$9,758 NZD
€5,238 EUR
View
A
Retailer 9
-
$10,519 NZD
£4,668 GBP
View
A
Retailer 10
-
$11,593 NZD
$6,534 USD
View
Retailer 11
-
$12,819 NZD
$7,225 USD
View
Price last confirmed 12 days ago
A
Retailer 12
-
$12,991 NZD
ZAR 118,286 ZAR
View
Retailer 13
-
$13,096 NZD
A$11,355 AUD
View
Price last confirmed 9 days ago
A
Retailer 14
-
$14,610 NZD
$8,234 USD
View
A
Retailer 15
-
$15,553 NZD
£6,902 GBP
View
B+
Retailer 16
-
$21,246 NZD
$11,974 USD
View
Most Expensive
B+
With Clarity
819642918 · Oct 30
$22,438 NZD
$12,646 USD
View
16 more retailers have this diamond
Prices start from $5,099 NZDSave up to $17,339 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
4.59ct Cushion
$5,099 NZD