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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 $7,616 SGD
CA$8,274 CAD
As of October 30, 2026
Save $33,615 SGD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $41,231 SGD 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 $7,616 to $41,231, a $33,615 spread on the same certified stone. With Clarity lists it at $41,231. 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
Colour
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: $10,445 SGD|Low: $6,093 SGD|High: $20,939 SGD|Avg: $13,295 SGD|+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$7,858 SGD
Retailer 14$8,140 SGD
Retailer 11$8,205 SGD
Retailer 2$8,235 SGD
Retailer 6$8,756 SGD
Retailer 1$10,445 SGD
Retailer 4$11,553 SGD
Retailer 9$12,826 SGD
Retailer 13$13,753 SGD
Retailer 10$16,653 SGD
Retailer 7$17,325 SGD
Retailer 12$18,156 SGD
Retailer 3$20,927 SGD
Retailer 5$20,939 SGD

42 data points across 14 retailers

21 retailers$7,616 SGD to $41,231 SGD

A
Cheapest Retailer
-
$7,616 SGD
CA$8,274 CAD
A
Retailer 2
-
$7,858 SGD
$6,147 USD
View
Final sale: no returns
Retailer 3
-
$8,140 SGD
$6,367 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
$8,150 SGD
$6,375 USD
View
A
Retailer 5
-
$8,205 SGD
$6,418 USD
View
A
Retailer 6
-
$8,235 SGD
$6,442 USD
View
A
Retailer 7
-
$8,756 SGD
$6,849 USD
View
A
Retailer 8
-
$10,445 SGD
£6,434 GBP
View
A
Retailer 9
-
$11,553 SGD
£7,116 GBP
View
B+
Retailer 10
-
$12,826 SGD
€9,555 EUR
View
B+
Retailer 11
-
$13,753 SGD
$10,758 USD
View
B+
Retailer 12
-
$16,653 SGD
£10,257 GBP
View
B+
Retailer 13
-
$17,325 SGD
ZAR 218,929 ZAR
View
B+
Retailer 14
-
$18,156 SGD
$14,202 USD
View
B+
Retailer 15
-
$19,841 SGD
$15,520 USD
View
Retailer 16
-
$20,927 SGD
$16,370 USD
View
Price last confirmed 37 days ago
B
Retailer 17
-
$20,939 SGD
$16,379 USD
View
B
Retailer 18
-
$21,900 SGD
$17,131 USD
View
B
Retailer 19
-
$22,639 SGD
$17,709 USD
View
B
Retailer 20
-
$28,820 SGD
$22,544 USD
View
Most Expensive
B
With Clarity
811675428 · Oct 30
$41,231 SGD
$32,252 USD
View
20 more retailers have this diamond
Prices start from $7,616 SGDSave up to $33,615 SGD

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
$7,616 SGD