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 $5,103 CAD
$3,653 USD
As of October 30, 2026
Save $11,883 CAD (70%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $16,986 CAD at Brilliant Earth · As of October 30, 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 30, 2026, with prices from $5,103 to $16,986, a $11,883 spread on the same certified stone. Brilliant Earth lists it at $16,986. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $16,986 CAD|Low: $5,103 CAD|High: $22,350 CAD|Avg: $11,104 CAD|-24.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2$5,103 CAD
Retailer 6$6,095 CAD
Retailer 3$6,746 CAD
Retailer 7$8,560 CAD
Retailer 4$10,071 CAD
Retailer 5$12,647 CAD
Brilliant Earth$16,986 CAD

6 data points across 7 retailers

7 retailers$5,103 CAD to $16,986 CAD

A
Cheapest Retailer
-
$5,103 CAD
$3,653 USD
A
Retailer 2
-
$5,486 CAD
$3,927 USD
View
A
Retailer 3
-
$6,746 CAD
$4,829 USD
View
A
Retailer 4
-
$8,560 CAD
$6,128 USD
View
A
Retailer 5
-
$10,071 CAD
€6,866 EUR
View
B+
Retailer 6
-
$12,647 CAD
£7,129 GBP
View
Most Expensive
B+
Brilliant Earth
22257780Y · Oct 30
$16,986 CAD
$12,160 USD
View
6 more retailers have this diamond
Prices start from $5,103 CADSave up to $11,883 CAD

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
$5,103 CAD