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Princess|Natural|GIA

1.23ct J SI2 Princess Natural Diamond

EX • J/SI2 • GIA 2534772558

Certificate GIA 2534772558

Diamond specifications and retailer prices

From £1,390 GBP
$1,860 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: £1,390 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

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 2534772558. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.02°
Pavilion angle38.32°
OriginNatural
Grading LabGIA
CertificateGIA 2534772558
Dimensions5.73 × 5.71 × 4.17 mm
L/W Ratio1.00
Top View
5.73 mm5.71 mm1.23 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2534772558
Side View
Table 72.0%Crown 29.02°Girdle: THN-THKPavilion 38.32°Culet: NoneDepth 73.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £1,390 GBP|Low: £778 GBP|High: £2,426 GBP|Avg: £1,606 GBP|-20.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
March 6, 2026
Retailer 3£778 GBP
Retailer 6£1,165 GBP
Retailer 10£1,168 GBP
Retailer 2£1,302 GBP
Retailer 8£1,310 GBP
Brilliant Earth£1,390 GBP
Retailer 4£1,467 GBP
Retailer 5£1,527 GBP
Retailer 7£1,529 GBP
Retailer 9£2,193 GBP

35 data points across 10 retailers

1 retailer

B+
Brilliant Earth
16360957A · Nov 6
£1,390 GBP
$1,860 USD
View

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
£1,390 GBP