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Cushion|Lab Grown|IGI

4.05ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG804659510

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804659510

Diamond specifications and retailer prices

From €3,958 EUR
$4,422 USD
As of October 30, 2026
Save €12,531 EUR (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €16,489 EUR at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804659510 or 804659510. Listed at 14 retailers as of October 30, 2026, with prices from €3,958 to €16,489, a €12,531 spread on the same certified stone. With Clarity lists it at €16,489. 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

4.05
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659510
Dimensions10.68 × 8.66 × 5.51 mm
L/W Ratio1.23
Girdle conditionFaceted
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
10.68 mm8.66 mm4.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659510
Side View
Table 62.0%Crown 36.3°Girdle: MED-STKPavilion 34.4°Culet: NoneDepth 63.6%

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: €5,474 EUR|Low: €3,958 EUR|High: €20,023 EUR|Avg: €8,851 EUR|-18.8%
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
With Clarity
October 31, 2026
Retailer 11€3,958 EUR
Retailer 3€5,202 EUR
Retailer 13€5,456 EUR
Retailer 1€5,474 EUR
Retailer 2€6,389 EUR
Retailer 8€6,839 EUR
Retailer 10€7,013 EUR
Retailer 4€7,837 EUR
Retailer 7€8,871 EUR
Retailer 9€8,976 EUR
Retailer 6€9,927 EUR
Retailer 12€11,165 EUR
Retailer 5€14,793 EUR
With Clarity€16,489 EUR

41 data points across 14 retailers

14 retailers€3,958 EUR to €16,489 EUR

A
Cheapest Retailer
-
€3,958 EUR
$4,422 USD
A
Retailer 2
-
€5,202 EUR
HK$45,400 HKD
View
A
Retailer 3
-
€5,456 EUR
$6,096 USD
View
A
Retailer 4
-
€5,474 EUR
£4,816 GBP
View
A
Retailer 5
-
€6,389 EUR
$7,138 USD
View
A
Retailer 6
-
€6,839 EUR
View
Retailer 7
-
€7,013 EUR
$7,835 USD
View
Price last confirmed 10 days ago
A
Retailer 8
-
€7,837 EUR
$8,756 USD
View
B+
Retailer 9
-
€8,871 EUR
ZAR 160,110 ZAR
View
B+
Retailer 10
-
€8,976 EUR
£7,896 GBP
View
B+
Retailer 11
-
€9,927 EUR
$11,090 USD
View
B+
Retailer 12
-
€11,165 EUR
$12,474 USD
View
B+
Retailer 13
-
€14,793 EUR
$16,527 USD
View
Most Expensive
B
With Clarity
804659510 · Oct 31
€16,489 EUR
$18,422 USD
View
13 more retailers have this diamond
Prices start from €3,958 EURSave up to €12,531 EUR

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
4.05ct Cushion
€3,958 EUR