Radiant|Natural|GIA

4.23ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 6531257839

Certificate GIA 6531257839

Diamond specifications and retailer prices

From $102,192 NZD
HK$448,400 HKD
As of October 29, 2026
Save $43,519 NZD (30%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $145,711 NZD 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 $102,192 to $145,711, a $43,519 spread on the same certified stone. Yorxs lists it at $145,711. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $130,643 NZD|Low: $102,192 NZD|High: $145,711 NZD|Avg: $115,826 NZD|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Yorxs
October 29, 2026
Retailer 7$102,192 NZD
Retailer 3$109,592 NZD
Retailer 2$109,927 NZD
Retailer 8$110,733 NZD
Retailer 4$110,852 NZD
Retailer 5$121,938 NZD
Retailer 6$128,538 NZD
Retailer 1$130,643 NZD
Yorxs$145,711 NZD

30 data points across 9 retailers

11 retailers$102,192 NZD to $145,711 NZD

A
Cheapest Retailer
-
$102,192 NZD
HK$448,400 HKD
A
Retailer 2
-
$109,592 NZD
$61,551 USD
View
A
Retailer 3
-
$109,927 NZD
₹5,879,916 INR
View
A
Retailer 4
-
$110,733 NZD
$62,192 USD
View
A
Retailer 5
-
$115,246 NZD
A$99,580 AUD
View
A
Retailer 6
-
$117,907 NZD
$66,221 USD
View
Price last confirmed 101 days ago
A
Retailer 7
-
$121,938 NZD
$68,485 USD
View
Price last confirmed 7 days ago
A
Retailer 8
-
$128,087 NZD
$71,939 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
$128,538 NZD
£56,844 GBP
View
Price last confirmed 7 days ago
A
Retailer 10
-
$130,643 NZD
£57,775 GBP
View
Most Expensive
B+
Yorxs
E7FD3D497 · Oct 23
$145,711 NZD
€77,940 EUR
View
10 more retailers have this diamond
Prices start from $102,192 NZDSave up to $43,519 NZD

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
$102,192 NZD