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Cushion|Lab Grown|IGI

4.40ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG822633154

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG822633154

Diamond specifications and retailer prices

From HK$5,156 HKD
£517 GBP
As of October 27, 2026
Save HK$21,755 HKD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$26,911 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.4ct lab-grown cushion diamond

This 4.4ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG822633154 or 822633154. Listed at 12 retailers as of October 27, 2026, with prices from HK$5,156 to HK$26,911, a HK$21,755 spread on the same certified stone. Brilliant Earth lists it at HK$26,911. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.40
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle31.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG822633154
Dimensions11.41 × 8.37 × 5.35 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
11.41 mm8.37 mm4.40 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG822633154
Side View
Table 61.0%Crown 34.9°Girdle: MED-THKPavilion 31.5°Culet: NoneDepth 63.9%

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 27
Current: HK$26,911 HKD|Low: HK$5,138 HKD|High: HK$50,840 HKD|Avg: HK$16,224 HKD|-47.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 8HK$5,156 HKD
Retailer 7HK$6,327 HKD
Retailer 3HK$6,983 HKD
Retailer 2HK$8,469 HKD
Retailer 12HK$9,132 HKD
Retailer 9HK$9,274 HKD
Retailer 4HK$10,992 HKD
Retailer 6HK$12,843 HKD
Retailer 5HK$18,387 HKD
Retailer 11HK$24,675 HKD
Retailer 10HK$25,897 HKD
Brilliant EarthHK$26,911 HKD

39 data points across 12 retailers

12 retailersHK$5,156 HKD to HK$26,911 HKD

A
Cheapest Retailer
-
HK$5,156 HKD
£517 GBP
A
Retailer 2
-
HK$6,327 HKD
View
Retailer 3
-
HK$6,983 HKD
$890 USD
View
Price last confirmed 5 days ago
A
Retailer 4
-
HK$8,469 HKD
€1,028 EUR
View
B+
Retailer 5
-
HK$9,132 HKD
$1,164 USD
View
A
Retailer 6
-
HK$9,274 HKD
£931 GBP
View
B+
Retailer 7
-
HK$10,992 HKD
$1,401 USD
View
B+
Retailer 8
-
HK$12,843 HKD
$1,637 USD
View
B+
Retailer 9
-
HK$18,387 HKD
SGD 3,167 SGD
View
Retailer 10
-
HK$24,675 HKD
$3,145 USD
View
Price last confirmed 14 days ago
Retailer 11
-
HK$25,897 HKD
£2,599 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
20801264A · Nov 2
HK$26,911 HKD
$3,430 USD
View
11 more retailers have this diamond
Prices start from HK$5,156 HKDSave up to HK$21,755 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
4.40ct Cushion
HK$5,156 HKD