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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 HK$46,739 HKD
CA$8,274 CAD
As of October 30, 2026
Save HK$206,300 HKD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$253,040 HKD at With Clarity · As of October 31, 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 HK$46,739 to HK$253,040, a HK$206,300 spread on the same certified stone. With Clarity lists it at HK$253,040. 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

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 30
Current: HK$64,107 HKD|Low: HK$37,393 HKD|High: HK$128,506 HKD|Avg: HK$81,565 HKD|+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 31, 2026
Retailer 8HK$48,228 HKD
Retailer 14HK$49,954 HKD
Retailer 11HK$50,354 HKD
Retailer 2HK$50,542 HKD
Retailer 6HK$53,735 HKD
Retailer 1HK$64,107 HKD
Retailer 4HK$70,904 HKD
Retailer 9HK$78,714 HKD
Retailer 13HK$84,404 HKD
Retailer 10HK$102,201 HKD
Retailer 7HK$106,323 HKD
Retailer 12HK$111,425 HKD
Retailer 3HK$128,434 HKD
Retailer 5HK$128,506 HKD

43 data points across 14 retailers

21 retailersHK$46,739 HKD to HK$253,040 HKD

A
Cheapest Retailer
-
HK$46,739 HKD
CA$8,274 CAD
A
Retailer 2
-
HK$48,228 HKD
$6,147 USD
View
Final sale: no returns
Retailer 3
-
HK$49,954 HKD
$6,367 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
HK$50,016 HKD
$6,375 USD
View
A
Retailer 5
-
HK$50,354 HKD
$6,418 USD
View
A
Retailer 6
-
HK$50,542 HKD
$6,442 USD
View
A
Retailer 7
-
HK$53,735 HKD
$6,849 USD
View
A
Retailer 8
-
HK$64,107 HKD
£6,434 GBP
View
A
Retailer 9
-
HK$70,904 HKD
£7,116 GBP
View
B+
Retailer 10
-
HK$78,714 HKD
€9,555 EUR
View
B+
Retailer 11
-
HK$84,404 HKD
$10,758 USD
View
B+
Retailer 12
-
HK$102,201 HKD
£10,257 GBP
View
B+
Retailer 13
-
HK$106,323 HKD
ZAR 218,929 ZAR
View
B+
Retailer 14
-
HK$111,425 HKD
$14,202 USD
View
B+
Retailer 15
-
HK$121,765 HKD
$15,520 USD
View
Retailer 16
-
HK$128,434 HKD
$16,370 USD
View
Price last confirmed 37 days ago
B
Retailer 17
-
HK$128,506 HKD
$16,379 USD
View
B
Retailer 18
-
HK$134,405 HKD
$17,131 USD
View
B
Retailer 19
-
HK$138,939 HKD
$17,709 USD
View
B
Retailer 20
-
HK$176,874 HKD
$22,544 USD
View
Most Expensive
B
With Clarity
811675428 · Oct 31
HK$253,040 HKD
$32,252 USD
View
20 more retailers have this diamond
Prices start from HK$46,739 HKDSave up to HK$206,300 HKD

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
HK$46,739 HKD