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Princess|Natural|GIA

1.03ct H SI1 Princess Natural Diamond

ID • H/SI1 • GIA 2557979361

Certificate GIA 2557979361

Diamond specifications and retailer prices

From £1,314 GBP
As of November 6, 2026
Save £1,635 GBP (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,487 GBP at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 1.03ct natural princess diamond

This 1.03ct natural princess sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557979361. Listed at 15 retailers as of November 2, 2026, with a 124% 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

1.03
Carat
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557979361
Dimensions5.60 × 5.54 × 3.96 mm
L/W Ratio1.01
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
5.60 mm5.54 mm1.03 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557979361
Side View
Table 71.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 71.5%

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 6
Current: £1,633 GBP|Low: £1,228 GBP|High: £2,957 GBP|Avg: £1,797 GBP|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 2£1,314 GBP
Retailer 12£1,460 GBP
Retailer 13£1,511 GBP
Retailer 4£1,591 GBP
Retailer 1£1,633 GBP
Retailer 5£1,644 GBP
Retailer 9£1,771 GBP
Retailer 10£1,771 GBP
Retailer 11£1,830 GBP
Retailer 3£1,964 GBP
Retailer 7£2,055 GBP
Retailer 6£2,091 GBP
Retailer 8£2,950 GBP

31 data points across 13 retailers

15 retailers£1,314 GBP to £2,950 GBP

A
Cheapest Retailer
-
£1,314 GBP
A
Retailer 2
-
£1,460 GBP
View
Retailer 3
-
£1,511 GBP
View
Price last confirmed 23 days ago
Retailer 4
-
£1,581 GBP
View
Price last confirmed 22 days ago
B+
Retailer 5
-
£1,591 GBP
View
B+
Retailer 6
-
£1,633 GBP
View
Retailer 7
-
£1,743 GBP
View
Price last confirmed 21 days ago
B+
Retailer 8
-
£1,771 GBP
View
B+
Retailer 9
-
£1,771 GBP
View
B+
Retailer 10
-
£1,830 GBP
View
B+
Retailer 11
-
£1,964 GBP
View
B+
Retailer 12
-
£2,055 GBP
View
B+
Retailer 13
-
£2,091 GBP
View
B
Retailer 14
-
£2,950 GBP
View
Most Expensive
NZ Jewellers
c2b33655-b16e-4d54-b412-9aa5087ef5d1 · Oct 14
£3,487 GBP
$4,667 USD
View
Price last confirmed 23 days ago
14 more retailers have this diamond
Prices start from £1,314 GBPSave up to £1,635 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
1.03ct Princess
£1,314 GBP