Princess|Natural|GIA

1.23ct G SI1 Princess Natural Diamond

ID • G/SI1 • GIA 103

Certificate GIA 103

Diamond specifications and retailer prices

From $4,614 AUD
As of November 1, 2026
Save $5,212 AUD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,825 AUD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.23ct natural princess diamond

This 1.23ct natural princess sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 16 retailers as of November 1, 2026, with a 113% 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

1.23
Carat
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 103
Dimensions5.89 × 5.82 × 4.27 mm
L/W Ratio1.01
Top View
5.89 mm5.82 mm1.23 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 103
Side View
Table 72.0%CrownGirdle: Slightly Thick to ThickPavilionCulet: NDepth 73.3%

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 1
Current: $9,825 AUD|Low: $3,438 AUD|High: $9,825 AUD|Avg: $5,439 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 9$3,438 AUD
Retailer 6$4,614 AUD
Retailer 8$4,640 AUD
Retailer 2$5,110 AUD
Retailer 4$5,110 AUD
Retailer 3$5,306 AUD
Retailer 7$5,468 AUD
Retailer 5$5,896 AUD
NZ Jewellers$9,825 AUD

12 data points across 9 retailers

16 retailers$4,614 AUD to $9,825 AUD

B+
Cheapest Retailer
-
$4,614 AUD
B+
Retailer 2
-
$4,640 AUD
View
B+
Retailer 3
-
$5,110 AUD
View
Retailer 4
-
$5,110 AUD
View
Price last confirmed 9 days ago
Retailer 5
-
$5,110 AUD
View
Price last confirmed 9 days ago
Retailer 6
-
$5,110 AUD
View
Price last confirmed 30 days ago
B+
Retailer 7
-
$5,110 AUD
View
Retailer 8
-
$5,306 AUD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$5,306 AUD
View
B
Retailer 10
-
$5,468 AUD
View
Retailer 11
-
$5,896 AUD
View
Price last confirmed 29 days ago
Retailer 12
-
$5,896 AUD
View
Price last confirmed 11 days ago
B
Retailer 13
-
$5,896 AUD
View
Retailer 14
-
$9,825 AUD
View
Price last confirmed 35 days ago
B
Retailer 15
-
$9,825 AUD
View
Most Expensive
NZ Jewellers
a1731493-114a-4aec-8b28-045a197b09a4 · Oct 27
$9,825 AUD
$6,751 USD
View
Price last confirmed 11 days ago
15 more retailers have this diamond
Prices start from $4,614 AUDSave up to $5,212 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.

B+
1.23ct Princess
$4,614 AUD