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Radiant|Natural|GIA

4.23ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 6531257839

Certificate GIA 6531257839

Diamond specifications and retailer prices

From HK$450,346 HKD
As of October 29, 2026
Save HK$191,780 HKD (30%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$642,126 HKD at Yorxs · As of October 23, 2026
View at Yorxs

About this 4.23ct natural radiant diamond

This 4.23ct natural radiant sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6531257839. Listed at 11 retailers as of October 23, 2026, with prices from HK$450,346 to HK$642,126, a HK$191,780 spread on the same certified stone. Yorxs lists it at HK$642,126. 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

4.23
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531257839
Dimensions10.47 × 8.60 × 5.35 mm
L/W Ratio1.22
Top View
10.47 mm8.60 mm4.23 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531257839
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.2%

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 29
Current: HK$575,724 HKD|Low: HK$450,346 HKD|High: HK$642,126 HKD|Avg: HK$510,426 HKD|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Yorxs
October 29, 2026
Retailer 7HK$450,346 HKD
Retailer 3HK$482,954 HKD
Retailer 2HK$484,430 HKD
Retailer 8HK$487,983 HKD
Retailer 4HK$488,509 HKD
Retailer 5HK$537,361 HKD
Retailer 6HK$566,447 HKD
Retailer 1HK$575,724 HKD
YorxsHK$642,126 HKD

30 data points across 9 retailers

11 retailersHK$450,346 HKD to HK$642,126 HKD

A
Cheapest Retailer
-
HK$450,346 HKD
A
Retailer 2
-
HK$482,954 HKD
$61,551 USD
View
A
Retailer 3
-
HK$484,430 HKD
₹5,879,916 INR
View
A
Retailer 4
-
HK$487,983 HKD
$62,192 USD
View
A
Retailer 5
-
HK$507,872 HKD
A$99,580 AUD
View
A
Retailer 6
-
HK$519,598 HKD
$66,221 USD
View
Price last confirmed 100 days ago
A
Retailer 7
-
HK$537,361 HKD
$68,485 USD
View
Price last confirmed 7 days ago
A
Retailer 8
-
HK$564,463 HKD
$71,939 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
HK$566,447 HKD
£56,844 GBP
View
Price last confirmed 7 days ago
A
Retailer 10
-
HK$575,724 HKD
£57,775 GBP
View
Most Expensive
B+
Yorxs
E7FD3D497 · Oct 23
HK$642,126 HKD
€77,940 EUR
View
10 more retailers have this diamond
Prices start from HK$450,346 HKDSave up to HK$191,780 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
4.23ct Radiant
HK$450,346 HKD