Radiant|Natural|GIA

4.23ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 6531257839

Certificate GIA 6531257839

Diamond specifications and retailer prices

From $81,708 AUD
HK$448,400 HKD
As of October 30, 2026
Save $23,066 AUD (22%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $116,503 AUD 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 30, 2026, with a 28% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 30
Current: $87,825 AUD|Low: $81,708 AUD|High: $116,503 AUD|Avg: $92,841 AUD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Yorxs
October 30, 2026
Retailer 7$81,708 AUD
Retailer 3$87,624 AUD
Retailer 1$87,825 AUD
Retailer 8$88,537 AUD
Retailer 4$88,632 AUD
Retailer 5$97,495 AUD
Retailer 6$102,773 AUD
Retailer 2$104,774 AUD
Yorxs$116,503 AUD

29 data points across 9 retailers

11 retailers$81,708 AUD to $104,774 AUD

A
Cheapest Retailer
-
$81,708 AUD
HK$448,400 HKD
Retailer 2
-
$87,624 AUD
$61,551 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$87,825 AUD
₹5,875,448 INR
View
A
Retailer 4
-
$88,537 AUD
$62,192 USD
View
A
Retailer 5
-
$92,145 AUD
View
Retailer 6
-
$94,273 AUD
$66,221 USD
View
Price last confirmed 102 days ago
Retailer 7
-
$97,495 AUD
$68,485 USD
View
Price last confirmed 8 days ago
Retailer 8
-
$102,412 AUD
$71,939 USD
View
Price last confirmed 8 days ago
Retailer 9
-
$102,773 AUD
£56,844 GBP
View
Price last confirmed 8 days ago
A
Retailer 10
-
$104,774 AUD
£57,951 GBP
View
Most Expensive
Yorxs
E7FD3D497 · Oct 23
$116,503 AUD
€77,940 EUR
View
Price last confirmed 7 days ago
10 more retailers have this diamond
Prices start from $81,708 AUDSave up to $23,066 AUD

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
$81,708 AUD