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Cushion|Lab Grown|IGI

4.07ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG804659728

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG804659728

Diamond specifications and retailer prices

From HK$45,794 HKD
As of October 31, 2026
Save HK$99,454 HKD (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$145,247 HKD at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.07ct lab-grown cushion diamond

This 4.07ct 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 LG804659728 or 804659728. Listed at 13 retailers as of October 31, 2026, with prices from HK$45,794 to HK$145,247, a HK$99,454 spread on the same certified stone. With Clarity lists it at HK$145,247. 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

4.07
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659728
Dimensions9.26 × 9.20 × 5.98 mm
L/W Ratio1.01
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
9.26 mm9.20 mm4.07 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659728
Side View
Table 60.0%Crown 39.4°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 65.0%

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 31
Current: HK$48,220 HKD|Low: HK$45,794 HKD|High: HK$176,371 HKD|Avg: HK$81,551 HKD|-18.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
October 31, 2026
Retailer 2HK$45,794 HKD
Retailer 1HK$48,220 HKD
Retailer 11HK$48,243 HKD
Retailer 12HK$56,269 HKD
Retailer 7HK$60,244 HKD
Retailer 9HK$61,628 HKD
Retailer 3HK$69,034 HKD
Retailer 6HK$78,121 HKD
Retailer 8HK$79,045 HKD
Retailer 5HK$87,480 HKD
Retailer 10HK$98,351 HKD
Retailer 4HK$130,307 HKD
With ClarityHK$145,247 HKD

42 data points across 13 retailers

13 retailersHK$45,794 HKD to HK$145,247 HKD

A
Cheapest Retailer
-
HK$45,794 HKD
A
Retailer 2
-
HK$48,220 HKD
£4,839 GBP
View
A
Retailer 3
-
HK$48,243 HKD
$6,149 USD
View
A
Retailer 4
-
HK$56,269 HKD
$7,172 USD
View
A
Retailer 5
-
HK$60,244 HKD
€7,313 EUR
View
Retailer 6
-
HK$61,628 HKD
$7,855 USD
View
Price last confirmed 10 days ago
A
Retailer 7
-
HK$69,034 HKD
$8,799 USD
View
B+
Retailer 8
-
HK$78,121 HKD
ZAR 160,859 ZAR
View
B+
Retailer 9
-
HK$79,045 HKD
£7,933 GBP
View
B+
Retailer 10
-
HK$87,480 HKD
$11,150 USD
View
B+
Retailer 11
-
HK$98,351 HKD
$12,536 USD
View
B
Retailer 12
-
HK$130,307 HKD
$16,609 USD
View
Most Expensive
B
With Clarity
804659728 · Oct 31
HK$145,247 HKD
$18,513 USD
View
12 more retailers have this diamond
Prices start from HK$45,794 HKDSave up to HK$99,454 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
4.07ct Cushion
HK$45,794 HKD