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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 €1,238 EUR
As of November 5, 2026
Save €1,592 EUR (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €2,830 EUR 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 €1,238 to €2,830, a €1,592 spread on the same certified stone. MOH London lists it at €2,830. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €2,830 EUR|Low: €1,192 EUR|High: €2,830 EUR|Avg: €1,684 EUR|+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€1,238 EUR
Retailer 14€1,305 EUR
Retailer 7€1,326 EUR
Retailer 3€1,340 EUR
Retailer 4€1,353 EUR
Retailer 10€1,380 EUR
Retailer 8€1,423 EUR
Retailer 16€1,459 EUR
Retailer 5€1,627 EUR
Retailer 6€1,729 EUR
Retailer 17€1,729 EUR
Retailer 18€1,782 EUR
Retailer 11€1,859 EUR
Retailer 13€1,976 EUR
Retailer 9€2,049 EUR
Retailer 2€2,055 EUR
Retailer 15€2,319 EUR
MOH London€2,830 EUR

33 data points across 18 retailers

18 retailers€1,238 EUR to €2,830 EUR

B+
Cheapest Retailer
-
€1,238 EUR
A
Retailer 2
-
€1,305 EUR
View
Retailer 3
-
€1,326 EUR
View
Price last confirmed 19 days ago
Retailer 4
-
€1,340 EUR
View
Price last confirmed 10 days ago
B+
Retailer 5
-
€1,353 EUR
View
Final sale: no returns
Retailer 6
-
€1,380 EUR
View
Price last confirmed 11 days ago
Retailer 7
-
€1,423 EUR
View
Price last confirmed 12 days ago
B+
Retailer 8
-
€1,459 EUR
View
B+
Retailer 9
-
€1,627 EUR
View
B
Retailer 10
-
€1,729 EUR
View
B
Retailer 11
-
€1,729 EUR
View
B
Retailer 12
-
€1,782 EUR
View
B
Retailer 13
-
€1,859 EUR
View
B
Retailer 14
-
€1,976 EUR
View
Retailer 15
-
€2,049 EUR
View
Price last confirmed 32 days ago
B
Retailer 16
-
€2,055 EUR
View
B
Retailer 17
-
€2,319 EUR
View
Most Expensive
B
MOH London
93F73F8D2 · Nov 4
€2,830 EUR
£2,488 GBP
View
17 more retailers have this diamond
Prices start from €1,238 EURSave up to €1,592 EUR

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
€1,238 EUR