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Princess|Natural|GIA

1.03ct I SI1 Princess Natural Diamond

EX • I/SI1 • GIA 2564678278

Certificate GIA 2564678278

Diamond specifications and retailer prices

From £1,307 GBP
As of November 4, 2026
Save £1,110 GBP (46%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,418 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.03ct natural princess diamond

This 1.03ct natural princess sits in the classic one-carat band, graded I 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 2564678278. Listed at 12 retailers as of November 4, 2026, with prices from £1,307 to £2,418, a £1,110 spread on the same certified stone. Helzberg Diamonds lists it at £2,418. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle24.02°
Pavilion angle39.85°
OriginNatural
Grading LabGIA
CertificateGIA 2564678278
Dimensions5.56 × 5.48 × 4.00 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.56 mm5.48 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2564678278
Side View
Table 72.0%Crown 24.02°Girdle: STK-THKPavilion 39.85°Culet: NDepth 73.0%

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 4
Current: £2,418 GBP|Low: £1,307 GBP|High: £2,418 GBP|Avg: £1,629 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4£1,307 GBP
Retailer 11£1,337 GBP
Retailer 9£1,348 GBP
Retailer 10£1,363 GBP
Retailer 3£1,468 GBP
Retailer 6£1,475 GBP
Retailer 12£1,742 GBP
Retailer 5£1,890 GBP
Retailer 2£1,902 GBP
Retailer 8£2,055 GBP
Retailer 7£2,220 GBP
Helzberg Diamonds£2,418 GBP

9 data points across 12 retailers

12 retailers£1,307 GBP to £2,418 GBP

A
Cheapest Retailer
-
£1,307 GBP
A
Retailer 2
-
£1,337 GBP
View
A
Retailer 3
-
£1,348 GBP
View
A
Retailer 4
-
£1,363 GBP
View
B+
Retailer 5
-
£1,468 GBP
View
B+
Retailer 6
-
£1,475 GBP
View
B+
Retailer 7
-
£1,742 GBP
View
B
Retailer 8
-
£1,890 GBP
View
B
Retailer 9
-
£1,902 GBP
View
B
Retailer 10
-
£2,055 GBP
View
B
Retailer 11
-
£2,220 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRILMKMNOINO · Nov 6
£2,418 GBP
$3,236 USD
View
11 more retailers have this diamond
Prices start from £1,307 GBPSave up to £1,110 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
£1,307 GBP