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Princess|Natural|GIA

1.23ct J SI2 Princess Natural Diamond

EX • J/SI2 • GIA 2235886520

Certificate GIA 2235886520

Diamond specifications and retailer prices

From £937 GBP
As of November 5, 2026
Save £1,194 GBP (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,975 GBP 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2235886520. Listed at 20 retailers as of November 4, 2026, with a 127% 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2235886520
Dimensions5.61 × 5.49 × 4.21 mm
L/W Ratio1.02
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal
Top View
5.61 mm5.49 mm1.23 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2235886520
Side View
Table 73.0%CrownGirdle: ETK-ETKPavilionCulet: NoneDepth 76.7%

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: £2,975 GBP|Low: £899 GBP|High: £2,975 GBP|Avg: £1,371 GBP|+2.9%
NZ Jewellers
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
Retailer 19
Retailer 20
November 6, 2026
Retailer 16£937 GBP
Retailer 8£982 GBP
Retailer 4£1,010 GBP
Retailer 5£1,016 GBP
Retailer 10£1,053 GBP
Retailer 11£1,074 GBP
Retailer 12£1,074 GBP
Retailer 19£1,095 GBP
Retailer 9£1,123 GBP
Retailer 2£1,222 GBP
Retailer 6£1,275 GBP
Retailer 7£1,307 GBP
Retailer 20£1,307 GBP
Retailer 14£1,345 GBP
Retailer 3£1,352 GBP
Retailer 15£1,399 GBP
Retailer 13£1,546 GBP
Retailer 18£1,743 GBP
Retailer 17£2,131 GBP
NZ Jewellers£2,975 GBP

36 data points across 20 retailers

20 retailers£937 GBP to £2,131 GBP

A
Cheapest Retailer
-
£937 GBP
A
Retailer 2
-
£982 GBP
View
Retailer 3
-
£1,010 GBP
View
Price last confirmed 10 days ago
B+
Retailer 4
-
£1,016 GBP
View
Final sale: no returns
Retailer 5
-
£1,053 GBP
View
Price last confirmed 11 days ago
Retailer 6
-
£1,074 GBP
View
Price last confirmed 11 days ago
Retailer 7
-
£1,074 GBP
View
Price last confirmed 12 days ago
B+
Retailer 8
-
£1,095 GBP
View
Retailer 9
-
£1,123 GBP
View
Price last confirmed 12 days ago
B+
Retailer 10
-
£1,222 GBP
View
Retailer 11
-
£1,275 GBP
View
Price last confirmed 10 days ago
B+
Retailer 12
-
£1,307 GBP
View
B+
Retailer 13
-
£1,307 GBP
View
B+
Retailer 14
-
£1,345 GBP
View
B+
Retailer 15
-
£1,352 GBP
View
B+
Retailer 16
-
£1,399 GBP
View
B
Retailer 17
-
£1,546 GBP
View
B
Retailer 18
-
£1,743 GBP
View
B
Retailer 19
-
£2,131 GBP
View
Most Expensive
NZ Jewellers
7b178a3f-b8de-4e76-bb5e-e9698263acaa · Oct 27
£2,975 GBP
$3,982 USD
View
Price last confirmed 10 days ago
19 more retailers have this diamond
Prices start from £937 GBPSave up to £1,194 GBP

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
£937 GBP