Princess|Natural|GIA

1.23ct G SI1 Princess Natural Diamond

ID • G/SI1 • GIA 103

Certificate GIA 103

Diamond specifications and retailer prices

From $3,170 USD
As of November 1, 2026
Save $881 USD (22%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,751 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,751 USD|Low: $2,362 USD|High: $6,751 USD|Avg: $3,730 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9$2,362 USD
Retailer 4$3,170 USD
Retailer 8$3,188 USD
Retailer 2$3,511 USD
Retailer 5$3,511 USD
Retailer 6$3,646 USD
Retailer 7$3,757 USD
Retailer 3$4,051 USD
NZ Jewellers$6,751 USD

10 data points across 9 retailers

13 retailers$3,170 USD to $4,051 USD

B+
Cheapest Retailer
-
$3,170 USD
B+
Retailer 2
-
$3,188 USD
View
B+
Retailer 3
-
$3,511 USD
View
Retailer 4
-
$3,511 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$3,511 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$3,511 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$3,646 USD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$3,757 USD
View
Retailer 9
-
$4,051 USD
View
Price last confirmed 28 days ago
Retailer 10
-
$4,051 USD
View
Price last confirmed 10 days ago
B
Retailer 11
-
$4,051 USD
View
Retailer 12
-
$6,751 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
a1731493-114a-4aec-8b28-045a197b09a4 · Oct 27
$6,751 USD
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from $3,170 USDSave up to $881 USD

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
$3,170 USD