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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 $4,091 AUD
£2,263 GBP
As of October 30, 2026
Save $13,912 AUD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $18,003 AUD 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 $4,091 to $18,003, a $13,912 spread on the same certified stone. With Clarity lists it at $18,003. 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: $4,091 AUD|Low: $4,077 AUD|High: $18,003 AUD|Avg: $8,978 AUD|-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$4,091 AUD
Retailer 3$4,897 AUD
Retailer 4$4,956 AUD
Retailer 2$5,125 AUD
Retailer 7$5,180 AUD
Retailer 9$6,617 AUD
Retailer 13$6,997 AUD
Retailer 11$7,830 AUD
Retailer 8$8,440 AUD
Retailer 6$9,302 AUD
Retailer 16$10,286 AUD
Retailer 10$10,423 AUD
Retailer 14$10,507 AUD
Retailer 15$11,722 AUD
Retailer 12$12,479 AUD
Retailer 5$17,047 AUD
With Clarity$18,003 AUD

30 data points across 17 retailers

17 retailers$4,091 AUD to $18,003 AUD

A
Cheapest Retailer
-
$4,091 AUD
£2,263 GBP
Retailer 2
-
$4,897 AUD
$3,440 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$4,956 AUD
$3,481 USD
View
A
Retailer 4
-
$5,125 AUD
$3,600 USD
View
A
Retailer 5
-
$5,180 AUD
$3,639 USD
View
Final sale: no returns
A
Retailer 6
-
$6,617 AUD
£3,660 GBP
View
A
Retailer 7
-
$6,997 AUD
$4,915 USD
View
A
Retailer 8
-
$7,830 AUD
€5,238 EUR
View
A
Retailer 9
-
$8,440 AUD
£4,668 GBP
View
A
Retailer 10
-
$9,302 AUD
$6,534 USD
View
Retailer 11
-
$10,286 AUD
$7,225 USD
View
Price last confirmed 12 days ago
A
Retailer 12
-
$10,423 AUD
ZAR 118,286 ZAR
View
Retailer 13
-
$10,507 AUD
View
Price last confirmed 8 days ago
A
Retailer 14
-
$11,722 AUD
$8,234 USD
View
A
Retailer 15
-
$12,479 AUD
£6,902 GBP
View
B+
Retailer 16
-
$17,047 AUD
$11,974 USD
View
Most Expensive
B+
With Clarity
819642918 · Oct 30
$18,003 AUD
$12,646 USD
View
16 more retailers have this diamond
Prices start from $4,091 AUDSave up to $13,912 AUD

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
$4,091 AUD