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 $5,957 USD
CA$8,274 CAD
As of October 30, 2026
Save $26,295 USD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $32,252 USD 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 $5,957 to $32,252, a $26,295 spread on the same certified stone. With Clarity lists it at $32,252. 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: $8,171 USD|Low: $4,766 USD|High: $16,379 USD|Avg: $10,389 USD|+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$6,147 USD
Retailer 14$6,367 USD
Retailer 11$6,418 USD
Retailer 2$6,442 USD
Retailer 6$6,849 USD
Retailer 1$8,171 USD
Retailer 4$9,037 USD
Retailer 9$10,033 USD
Retailer 13$10,758 USD
Retailer 10$13,026 USD
Retailer 7$13,552 USD
Retailer 12$14,202 USD
Retailer 3$16,370 USD
Retailer 5$16,379 USD

43 data points across 14 retailers

21 retailers$5,957 USD to $32,252 USD

A
Cheapest Retailer
-
$5,957 USD
CA$8,274 CAD
A
Retailer 2
-
$6,147 USD
View
Final sale: no returns
Retailer 3
-
$6,367 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
$6,375 USD
View
A
Retailer 5
-
$6,418 USD
View
A
Retailer 6
-
$6,442 USD
View
A
Retailer 7
-
$6,849 USD
View
A
Retailer 8
-
$8,171 USD
£6,434 GBP
View
A
Retailer 9
-
$9,037 USD
£7,116 GBP
View
B+
Retailer 10
-
$10,033 USD
€9,555 EUR
View
B+
Retailer 11
-
$10,758 USD
View
B+
Retailer 12
-
$13,026 USD
£10,257 GBP
View
B+
Retailer 13
-
$13,552 USD
ZAR 218,929 ZAR
View
B+
Retailer 14
-
$14,202 USD
View
B+
Retailer 15
-
$15,520 USD
View
Retailer 16
-
$16,370 USD
View
Price last confirmed 36 days ago
B
Retailer 17
-
$16,379 USD
View
B
Retailer 18
-
$17,131 USD
View
B
Retailer 19
-
$17,709 USD
View
B
Retailer 20
-
$22,544 USD
View
Most Expensive
B
With Clarity
811675428 · Oct 30
$32,252 USD
View
20 more retailers have this diamond
Prices start from $5,957 USDSave up to $26,295 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
4.15ct Cushion
$5,957 USD