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Princess|Natural|GIA

1.23ct F SI1 Princess Natural Diamond

ID • F/SI1 • GIA 6555596215

Certificate GIA 6555596215

Diamond specifications and retailer prices

From £2,459 GBP
As of November 5, 2026
Save £1,415 GBP (37%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £3,874 GBP at MOH London · As of November 2, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555596215. Listed at 3 retailers as of November 2, 2026, with prices from £2,459 to £3,874, a £1,415 spread on the same certified stone. MOH London lists it at £3,874. 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555596215
Dimensions5.84 × 5.78 × 4.33 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
5.84 mm5.78 mm1.23 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555596215
Side View
Table 73.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 74.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £3,874 GBP|Low: £2,459 GBP|High: £4,047 GBP|Avg: £3,174 GBP|-4.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3£2,459 GBP
Retailer 2£2,593 GBP
MOH London£3,874 GBP

25 data points across 3 retailers

3 retailers£2,459 GBP to £3,874 GBP

B+
Cheapest Retailer
-
£2,459 GBP
B+
Retailer 2
-
£2,593 GBP
View
Most Expensive
B
MOH London
14D0A8F43 · Nov 2
£3,874 GBP
View
2 more retailers have this diamond
Prices start from £2,459 GBPSave up to £1,415 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.

B+
1.23ct Princess
£2,459 GBP