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Cushion|Lab Grown|IGI

4.05ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG797604470

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG797604470

Diamond specifications and retailer prices

From HK$42,916 HKD
$5,470 USD
As of October 30, 2026
Save HK$88,248 HKD (67%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$131,164 HKD at Riddles Jewelry · As of October 31, 2026
View at Riddles Jewelry

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 LG797604470 or 797604470. Listed at 8 retailers as of October 30, 2026, with prices from HK$42,916 to HK$131,164, a HK$88,248 spread on the same certified stone. Riddles Jewelry lists it at HK$131,164. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797604470
Dimensions11.34 × 8.35 × 5.56 mm
L/W Ratio1.36
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.34 mm8.35 mm4.05 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797604470
Side View
Table 62.0%Crown 35.2°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 66.6%

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$42,830 HKD|Low: HK$33,642 HKD|High: HK$242,008 HKD|Avg: HK$92,994 HKD|-16.9%
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
Retailer 15
Retailer 16
Riddles Jewelry
October 18, 2026
Retailer 1HK$42,830 HKD
Retailer 11HK$42,916 HKD
Retailer 10HK$45,616 HKD
Retailer 14HK$47,215 HKD
Retailer 8HK$47,506 HKD
Retailer 16HK$51,546 HKD
Retailer 15HK$62,152 HKD
Retailer 2HK$64,328 HKD
Retailer 3HK$74,142 HKD
Retailer 9HK$82,380 HKD
Retailer 6HK$102,708 HKD
Retailer 13HK$118,831 HKD
Retailer 12HK$125,410 HKD
Riddles JewelryHK$131,164 HKD
Retailer 5HK$135,707 HKD
Retailer 7HK$173,469 HKD
Retailer 4HK$242,008 HKD

9 data points across 17 retailers

8 retailersHK$42,916 HKD to HK$131,164 HKD

Retailer 1
-
HK$42,830 HKD
$5,459 USD
Price last confirmed 10 days ago
A
Retailer 2
-
HK$42,916 HKD
$5,470 USD
View
A
Retailer 3
-
HK$45,616 HKD
CA$8,075 CAD
View
A
Retailer 4
-
HK$47,215 HKD
$6,018 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$82,380 HKD
$10,500 USD
View
B
Retailer 6
-
HK$118,831 HKD
$15,146 USD
View
B
Retailer 7
-
HK$125,410 HKD
$15,985 USD
View
Most Expensive
B
Riddles Jewelry
1976264165 · Oct 31
HK$131,164 HKD
$16,718 USD
View
7 more retailers have this diamond
Prices start from HK$42,916 HKDSave up to HK$88,248 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$42,916 HKD