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Princess|Natural|GIA

1.23ct J SI1 Princess Natural Diamond

VG • J/SI1 • GIA 5231721589

Certificate GIA 5231721589

Diamond specifications and retailer prices

From $2,011 AUD
As of November 5, 2026
Save $2,587 AUD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,599 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural princess diamond

This 1.23ct natural princess sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231721589. Listed at 18 retailers as of November 4, 2026, with prices from $2,011 to $4,599, a $2,587 spread on the same certified stone. MOH London lists it at $4,599. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5231721589
Dimensions6.12 × 5.82 × 4.22 mm
L/W Ratio1.05
Top View
6.12 mm5.82 mm1.23 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 5231721589
Side View
Table 75.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 72.6%

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: Nov 5
Current: $4,599 AUD|Low: $1,937 AUD|High: $4,599 AUD|Avg: $2,737 AUD|+2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 12$2,011 AUD
Retailer 14$2,121 AUD
Retailer 7$2,154 AUD
Retailer 3$2,177 AUD
Retailer 4$2,199 AUD
Retailer 10$2,243 AUD
Retailer 8$2,313 AUD
Retailer 16$2,371 AUD
Retailer 5$2,643 AUD
Retailer 6$2,809 AUD
Retailer 17$2,809 AUD
Retailer 18$2,896 AUD
Retailer 11$3,021 AUD
Retailer 13$3,211 AUD
Retailer 9$3,330 AUD
Retailer 2$3,339 AUD
Retailer 15$3,768 AUD
MOH London$4,599 AUD

33 data points across 18 retailers

18 retailers$2,011 AUD to $4,599 AUD

B+
Cheapest Retailer
-
$2,011 AUD
A
Retailer 2
-
$2,121 AUD
View
Retailer 3
-
$2,154 AUD
View
Price last confirmed 19 days ago
Retailer 4
-
$2,177 AUD
View
Price last confirmed 10 days ago
B+
Retailer 5
-
$2,199 AUD
View
Final sale: no returns
Retailer 6
-
$2,243 AUD
View
Price last confirmed 11 days ago
Retailer 7
-
$2,313 AUD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
$2,371 AUD
View
B+
Retailer 9
-
$2,643 AUD
View
B
Retailer 10
-
$2,809 AUD
View
B
Retailer 11
-
$2,809 AUD
View
B
Retailer 12
-
$2,896 AUD
View
B
Retailer 13
-
$3,021 AUD
View
B
Retailer 14
-
$3,211 AUD
View
Retailer 15
-
$3,330 AUD
View
Price last confirmed 32 days ago
B
Retailer 16
-
$3,339 AUD
View
B
Retailer 17
-
$3,768 AUD
View
Most Expensive
B
MOH London
93F73F8D2 · Nov 4
$4,599 AUD
£2,488 GBP
View
17 more retailers have this diamond
Prices start from $2,011 AUDSave up to $2,587 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
1.23ct Princess
$2,011 AUD