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 $2,874 USD
£2,263 GBP
As of October 30, 2026
Save $9,772 USD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,646 USD 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 $2,874 to $12,646, a $9,772 spread on the same certified stone. With Clarity lists it at $12,646. 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
Color
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

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,874 USD|Low: $2,864 USD|High: $12,646 USD|Avg: $6,307 USD|-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$2,874 USD
Retailer 3$3,440 USD
Retailer 4$3,481 USD
Retailer 2$3,600 USD
Retailer 7$3,639 USD
Retailer 9$4,648 USD
Retailer 13$4,915 USD
Retailer 11$5,500 USD
Retailer 8$5,928 USD
Retailer 6$6,534 USD
Retailer 16$7,225 USD
Retailer 10$7,322 USD
Retailer 14$7,381 USD
Retailer 15$8,234 USD
Retailer 12$8,766 USD
Retailer 5$11,974 USD
With Clarity$12,646 USD

30 data points across 17 retailers

17 retailers$2,874 USD to $12,646 USD

A
Cheapest Retailer
-
$2,874 USD
£2,263 GBP
Retailer 2
-
$3,440 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$3,481 USD
View
A
Retailer 4
-
$3,600 USD
View
A
Retailer 5
-
$3,639 USD
View
Final sale: no returns
A
Retailer 6
-
$4,648 USD
£3,660 GBP
View
A
Retailer 7
-
$4,915 USD
View
A
Retailer 8
-
$5,500 USD
€5,238 EUR
View
A
Retailer 9
-
$5,928 USD
£4,668 GBP
View
A
Retailer 10
-
$6,534 USD
View
Retailer 11
-
$7,225 USD
View
Price last confirmed 11 days ago
A
Retailer 12
-
$7,322 USD
ZAR 118,286 ZAR
View
Retailer 13
-
$7,381 USD
A$11,355 AUD
View
Price last confirmed 8 days ago
A
Retailer 14
-
$8,234 USD
View
A
Retailer 15
-
$8,766 USD
£6,902 GBP
View
B+
Retailer 16
-
$11,974 USD
View
Most Expensive
B+
With Clarity
819642918 · Oct 30
$12,646 USD
View
16 more retailers have this diamond
Prices start from $2,874 USDSave up to $9,772 USD

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
$2,874 USD