Cushion|Lab Grown|IGI

4.18ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG846658008

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846658008

Diamond specifications and retailer prices

From €3,393 EUR
$3,776 USD
As of October 29, 2026
Save €10,983 EUR (76%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €14,376 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.18ct lab-grown cushion diamond

This 4.18ct 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 LG846658008 or 846658008. Listed at 7 retailers as of October 29, 2026, with prices from €3,393 to €14,376, a €10,983 spread on the same certified stone. Brilliant Earth lists it at €14,376. 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

4.18
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846658008
Dimensions11.31 × 8.11 × 5.57 mm
L/W Ratio1.39
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
11.31 mm8.11 mm4.18 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846658008
Side View
Table 61.0%Crown 34.8°Girdle: MED-THKPavilion 37.2°Culet: NoneDepth 68.7%

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 29
Current: €14,376 EUR|Low: €3,393 EUR|High: €14,376 EUR|Avg: €7,274 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 7€3,393 EUR
Retailer 5€3,920 EUR
Retailer 2€4,339 EUR
Retailer 6€5,506 EUR
Retailer 3€6,477 EUR
Retailer 4€8,135 EUR
Brilliant Earth€14,376 EUR

6 data points across 7 retailers

7 retailers€3,393 EUR to €14,376 EUR

A
Cheapest Retailer
-
€3,393 EUR
$3,776 USD
A
Retailer 2
-
€3,920 EUR
$4,363 USD
View
A
Retailer 3
-
€4,339 EUR
$4,829 USD
View
A
Retailer 4
-
€5,506 EUR
$6,128 USD
View
A
Retailer 5
-
€6,477 EUR
View
B+
Retailer 6
-
€8,135 EUR
£7,129 GBP
View
Most Expensive
B
Brilliant Earth
22257780Y · Oct 29
€14,376 EUR
$16,000 USD
View
6 more retailers have this diamond
Prices start from €3,393 EURSave up to €10,983 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
4.18ct Cushion
€3,393 EUR