CaratHunter
Plans
Cushion|Lab Grown|IGI

4.47ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG575376109

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG575376109

Diamond specifications and retailer prices

From HK$14,854 HKD
€1,803 EUR
As of November 2, 2026
Save HK$26,260 HKD (64%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$41,114 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.47ct lab-grown cushion diamond

This 4.47ct 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 LG575376109 or 575376109. Listed at 2 retailers as of November 2, 2026, with prices from HK$14,854 to HK$41,114, a HK$26,260 spread on the same certified stone. Brilliant Earth lists it at HK$41,114. 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

4.47
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG575376109
Dimensions10.94 × 8.96 × 6.09 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.94 mm8.96 mm4.47 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG575376109
Side View
Table 61.0%Crown 31.9°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$41,114 HKD|Low: HK$14,516 HKD|High: HK$52,804 HKD|Avg: HK$29,140 HKD|-22.1%
Brilliant Earth
Retailer 2
Retailer 3
October 31, 2026
Retailer 2HK$14,854 HKD
Retailer 3HK$22,350 HKD
Brilliant EarthHK$41,114 HKD

16 data points across 3 retailers

2 retailersHK$14,854 HKD to HK$41,114 HKD

B+
Cheapest Retailer
-
HK$14,854 HKD
€1,803 EUR
Most Expensive
B
Brilliant Earth
11123031Y · Nov 2
HK$41,114 HKD
$5,240 USD
View
1 more retailer has this diamond
Prices start from HK$14,854 HKDSave up to HK$26,260 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.

B+
4.47ct Cushion
HK$14,854 HKD