Princess|Natural|GIA

1.23ct G SI1 Princess Natural Diamond

ID • G/SI1 • GIA 103

Certificate GIA 103

Diamond specifications and retailer prices

From $5,718 NZD
As of November 1, 2026
Save $1,589 NZD (22%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $12,178 NZD 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 13 retailers as of November 1, 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

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: $12,178 NZD|Low: $4,261 NZD|High: $12,178 NZD|Avg: $6,728 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9$4,261 NZD
Retailer 4$5,718 NZD
Retailer 8$5,751 NZD
Retailer 2$6,333 NZD
Retailer 5$6,333 NZD
Retailer 6$6,577 NZD
Retailer 7$6,777 NZD
Retailer 3$7,308 NZD
NZ Jewellers$12,178 NZD

10 data points across 9 retailers

13 retailers$5,718 NZD to $7,308 NZD

B+
Cheapest Retailer
-
$5,718 NZD
B+
Retailer 2
-
$5,751 NZD
View
B+
Retailer 3
-
$6,333 NZD
View
Retailer 4
-
$6,333 NZD
View
Price last confirmed 8 days ago
Retailer 5
-
$6,333 NZD
View
Price last confirmed 8 days ago
Retailer 6
-
$6,333 NZD
View
Price last confirmed 29 days ago
Retailer 7
-
$6,577 NZD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$6,777 NZD
View
Retailer 9
-
$7,308 NZD
View
Price last confirmed 28 days ago
Retailer 10
-
$7,308 NZD
View
Price last confirmed 10 days ago
B
Retailer 11
-
$7,308 NZD
View
Retailer 12
-
$12,178 NZD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
a1731493-114a-4aec-8b28-045a197b09a4 · Oct 27
$12,178 NZD
$6,751 USD
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from $5,718 NZDSave up to $1,589 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.

B+
1.23ct Princess
$5,718 NZD