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Cushion|Lab Grown|IGI

4.15ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG811675428

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811675428

Diamond specifications and retailer prices

From $8,322 CAD
As of October 30, 2026
Save $36,731 CAD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $45,053 CAD at With Clarity · As of October 30, 2026
View at With Clarity

About this 4.15ct lab-grown cushion diamond

This 4.15ct 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 LG811675428 or 811675428. Listed at 21 retailers as of October 30, 2026, with prices from $8,322 to $45,053, a $36,731 spread on the same certified stone. With Clarity lists it at $45,053. 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

4.15
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811675428
Dimensions11.33 × 8.46 × 5.62 mm
L/W Ratio1.34
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.33 mm8.46 mm4.15 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811675428
Side View
Table 61.0%Crown 35.3°Girdle: MED-STKPavilion 37.1°Culet: NoneDepth 66.4%

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: $11,413 CAD|Low: $6,658 CAD|High: $22,880 CAD|Avg: $14,527 CAD|+0.5%
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
October 30, 2026
Retailer 8$8,587 CAD
Retailer 14$8,894 CAD
Retailer 11$8,965 CAD
Retailer 2$8,999 CAD
Retailer 6$9,567 CAD
Retailer 1$11,413 CAD
Retailer 4$12,624 CAD
Retailer 9$14,015 CAD
Retailer 13$15,028 CAD
Retailer 10$18,197 CAD
Retailer 7$18,930 CAD
Retailer 12$19,839 CAD
Retailer 3$22,867 CAD
Retailer 5$22,880 CAD

42 data points across 14 retailers

21 retailers$8,322 CAD to $45,053 CAD

A
Cheapest Retailer
-
$8,322 CAD
A
Retailer 2
-
$8,587 CAD
$6,147 USD
View
Final sale: no returns
Retailer 3
-
$8,894 CAD
$6,367 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
$8,905 CAD
$6,375 USD
View
A
Retailer 5
-
$8,965 CAD
$6,418 USD
View
A
Retailer 6
-
$8,999 CAD
$6,442 USD
View
A
Retailer 7
-
$9,567 CAD
$6,849 USD
View
A
Retailer 8
-
$11,413 CAD
£6,434 GBP
View
A
Retailer 9
-
$12,624 CAD
£7,116 GBP
View
B+
Retailer 10
-
$14,015 CAD
€9,555 EUR
View
B+
Retailer 11
-
$15,028 CAD
$10,758 USD
View
B+
Retailer 12
-
$18,197 CAD
£10,257 GBP
View
B+
Retailer 13
-
$18,930 CAD
ZAR 218,929 ZAR
View
B+
Retailer 14
-
$19,839 CAD
$14,202 USD
View
B+
Retailer 15
-
$21,680 CAD
$15,520 USD
View
Retailer 16
-
$22,867 CAD
$16,370 USD
View
Price last confirmed 37 days ago
B
Retailer 17
-
$22,880 CAD
$16,379 USD
View
B
Retailer 18
-
$23,930 CAD
$17,131 USD
View
B
Retailer 19
-
$24,738 CAD
$17,709 USD
View
B
Retailer 20
-
$31,492 CAD
$22,544 USD
View
Most Expensive
B
With Clarity
811675428 · Oct 30
$45,053 CAD
$32,252 USD
View
20 more retailers have this diamond
Prices start from $8,322 CADSave up to $36,731 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
4.15ct Cushion
$8,322 CAD