Princess|Natural|GIA

1.23ct J SI1 Princess Natural Diamond

VG • J/SI1 • GIA 5231721589

Certificate GIA 5231721589

Diamond specifications and retailer prices

From $1,382 USD
As of November 5, 2026
Save $1,778 USD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,160 USD 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 $1,382 to $3,160, a $1,778 spread on the same certified stone. MOH London lists it at $3,160. 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
Color
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: $3,160 USD|Low: $1,331 USD|High: $3,160 USD|Avg: $1,881 USD|+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$1,382 USD
Retailer 14$1,457 USD
Retailer 7$1,480 USD
Retailer 3$1,496 USD
Retailer 4$1,511 USD
Retailer 10$1,541 USD
Retailer 8$1,589 USD
Retailer 16$1,629 USD
Retailer 5$1,816 USD
Retailer 6$1,930 USD
Retailer 17$1,930 USD
Retailer 18$1,990 USD
Retailer 11$2,076 USD
Retailer 13$2,206 USD
Retailer 9$2,288 USD
Retailer 2$2,294 USD
Retailer 15$2,589 USD
MOH London$3,160 USD

33 data points across 18 retailers

18 retailers$1,382 USD to $3,160 USD

B+
Cheapest Retailer
-
$1,382 USD
A
Retailer 2
-
$1,457 USD
View
Retailer 3
-
$1,480 USD
View
Price last confirmed 19 days ago
Retailer 4
-
$1,496 USD
View
Price last confirmed 10 days ago
B+
Retailer 5
-
$1,511 USD
View
Final sale: no returns
Retailer 6
-
$1,541 USD
View
Price last confirmed 11 days ago
Retailer 7
-
$1,589 USD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
$1,629 USD
View
B+
Retailer 9
-
$1,816 USD
View
B
Retailer 10
-
$1,930 USD
View
B
Retailer 11
-
$1,930 USD
View
B
Retailer 12
-
$1,990 USD
View
B
Retailer 13
-
$2,076 USD
View
B
Retailer 14
-
$2,206 USD
View
Retailer 15
-
$2,288 USD
View
Price last confirmed 32 days ago
B
Retailer 16
-
$2,294 USD
View
B
Retailer 17
-
$2,589 USD
View
Most Expensive
B
MOH London
93F73F8D2 · Nov 4
$3,160 USD
£2,488 GBP
View
17 more retailers have this diamond
Prices start from $1,382 USDSave up to $1,778 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.

A
1.23ct Princess
$1,382 USD