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Cushion|Lab Grown|IGI

4.05ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG784645772

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG784645772

Diamond specifications and retailer prices

From HK$27,852 HKD
$3,550 USD
As of October 30, 2026
Save HK$144,204 HKD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$172,056 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.05ct lab-grown cushion diamond

This 4.05ct 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 LG784645772 or 784645772. Listed at 10 retailers as of October 30, 2026, with prices from HK$27,852 to HK$172,056, a HK$144,204 spread on the same certified stone. Do Amore Diamonds lists it at HK$172,056. 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

4.05
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784645772
Dimensions10.42 × 8.40 × 5.73 mm
L/W Ratio1.24
Girdle conditionFaceted
Culet sizePointed
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
10.42 mm8.40 mm4.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784645772
Side View
Table 59.0%Crown 34.7°Girdle: MED-THKPavilion 35.7°Culet: NoneDepth 68.2%

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$172,056 HKD|Low: HK$27,852 HKD|High: HK$218,267 HKD|Avg: HK$68,214 HKD|-21.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2HK$27,852 HKD
Retailer 6HK$30,245 HKD
Retailer 4HK$35,769 HKD
Retailer 10HK$37,722 HKD
Retailer 8HK$45,380 HKD
Retailer 5HK$54,807 HKD
Retailer 9HK$60,883 HKD
Retailer 7HK$68,951 HKD
Retailer 3HK$83,949 HKD
Do Amore DiamondsHK$172,056 HKD

30 data points across 10 retailers

10 retailersHK$27,852 HKD to HK$172,056 HKD

A
Cheapest Retailer
-
HK$27,852 HKD
$3,550 USD
A
Retailer 2
-
HK$30,245 HKD
$3,855 USD
View
A
Retailer 3
-
HK$35,769 HKD
$4,559 USD
View
A
Retailer 4
-
HK$37,722 HKD
$4,808 USD
View
Final sale: no returns
A
Retailer 5
-
HK$45,380 HKD
$5,784 USD
View
A
Retailer 6
-
HK$54,807 HKD
€6,653 EUR
View
Retailer 7
-
HK$60,883 HKD
$7,760 USD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
HK$68,951 HKD
£6,920 GBP
View
B+
Retailer 9
-
HK$83,949 HKD
$10,700 USD
View
Most Expensive
B
Do Amore Diamonds
27-D855F980A · Oct 31
HK$172,056 HKD
$21,930 USD
View
9 more retailers have this diamond
Prices start from HK$27,852 HKDSave up to HK$144,204 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
4.05ct Cushion
HK$27,852 HKD