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Cushion|Lab Grown|IGI

4.11ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG844621789

Shape and cutting style on the report: Square cushion antique cut

Certificate IGI LG844621789

Diamond specifications and retailer prices

From HK$49,546 HKD
$6,315 USD
As of October 28, 2026
Save HK$125,967 HKD (72%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$175,512 HKD at Taylor and Hart · As of October 26, 2026
View at Taylor and Hart

About this 4.11ct lab-grown cushion diamond

This 4.11ct 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 LG844621789 or 844621789. Listed at 10 retailers as of October 26, 2026, with prices from HK$49,546 to HK$175,512, a HK$125,967 spread on the same certified stone. Taylor and Hart lists it at HK$175,512. 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

4.11
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844621789
Dimensions9.81 × 9.52 × 6.04 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeLarge
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
9.81 mm9.52 mm4.11 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844621789
Side View
Table 51.0%Crown 36.4°Girdle: MED-STKPavilion 41.2°Culet: LargeDepth 63.4%

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 28
Current: HK$63,108 HKD|Low: HK$49,546 HKD|High: HK$175,512 HKD|Avg: HK$85,894 HKD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 27, 2026
Retailer 6HK$49,546 HKD
Retailer 5HK$52,849 HKD
Retailer 7HK$56,575 HKD
Retailer 4HK$60,953 HKD
Retailer 1HK$63,108 HKD
Retailer 10HK$70,306 HKD
Retailer 8HK$82,090 HKD
Retailer 2HK$83,596 HKD
Retailer 3HK$100,846 HKD
Retailer 9HK$137,646 HKD
Taylor and HartHK$175,512 HKD

14 data points across 11 retailers

10 retailersHK$49,546 HKD to HK$175,512 HKD

A
Cheapest Retailer
-
HK$49,546 HKD
$6,315 USD
A
Retailer 2
-
HK$52,849 HKD
$6,736 USD
View
A
Retailer 3
-
HK$60,953 HKD
$7,769 USD
View
A
Retailer 4
-
HK$63,108 HKD
£6,334 GBP
View
B+
Retailer 5
-
HK$70,306 HKD
£7,056 GBP
View
B+
Retailer 6
-
HK$82,090 HKD
$10,463 USD
View
B+
Retailer 7
-
HK$83,596 HKD
$10,655 USD
View
B+
Retailer 8
-
HK$100,846 HKD
£10,121 GBP
View
B
Retailer 9
-
HK$137,646 HKD
$17,544 USD
View
Most Expensive
B
Taylor and Hart
0QD3Q6C · Oct 26
HK$175,512 HKD
$22,371 USD
View
9 more retailers have this diamond
Prices start from HK$49,546 HKDSave up to HK$125,967 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
4.11ct Cushion
HK$49,546 HKD