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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 HK$28,660 HKD
$3,653 USD
As of October 30, 2026
Save HK$66,743 HKD (70%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$95,404 HKD 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 HK$28,660 to HK$95,404, a HK$66,743 spread on the same certified stone. Brilliant Earth lists it at HK$95,404. 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
Colour
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
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$95,404 HKD|Low: HK$28,660 HKD|High: HK$125,531 HKD|Avg: HK$62,366 HKD|-24.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2HK$28,660 HKD
Retailer 6HK$34,231 HKD
Retailer 3HK$37,887 HKD
Retailer 7HK$48,078 HKD
Retailer 4HK$56,562 HKD
Retailer 5HK$71,034 HKD
Brilliant EarthHK$95,404 HKD

6 data points across 7 retailers

7 retailersHK$28,660 HKD to HK$95,404 HKD

A
Cheapest Retailer
-
HK$28,660 HKD
$3,653 USD
A
Retailer 2
-
HK$30,810 HKD
$3,927 USD
View
A
Retailer 3
-
HK$37,887 HKD
$4,829 USD
View
A
Retailer 4
-
HK$48,078 HKD
$6,128 USD
View
A
Retailer 5
-
HK$56,562 HKD
€6,866 EUR
View
B+
Retailer 6
-
HK$71,034 HKD
£7,129 GBP
View
Most Expensive
B+
Brilliant Earth
22257780Y · Oct 30
HK$95,404 HKD
$12,160 USD
View
6 more retailers have this diamond
Prices start from HK$28,660 HKDSave up to HK$66,743 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
4.18ct Cushion
HK$28,660 HKD