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Princess|Natural|GIA

1.00ct E SI1 Princess Natural Diamond

EX • E/SI1 • GIA 7551654447

Certificate GIA 7551654447

Diamond specifications and retailer prices

From £1,294 GBP
As of November 5, 2026
Save £1,071 GBP (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,365 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1ct natural princess diamond

This 1ct natural princess sits in the classic one-carat band, graded E 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 7551654447. Listed at 14 retailers as of November 5, 2026, with prices from £1,294 to £2,365, a £1,071 spread on the same certified stone. Helzberg Diamonds lists it at £2,365. 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

1.00
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.92°
Pavilion angle37.27°
OriginNatural
Grading LabGIA
CertificateGIA 7551654447
Dimensions5.43 × 5.33 × 3.87 mm
L/W Ratio1.02
Culet sizeNone
Top View
5.43 mm5.33 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551654447
Side View
Table 71.0%Crown 28.92°Girdle: STK-VTKPavilion 37.27°Culet: NoneDepth 72.7%

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: £2,365 GBP|Low: £1,287 GBP|High: £2,462 GBP|Avg: £1,672 GBP|-3.9%
Helzberg Diamonds
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
November 5, 2026
Retailer 2£1,294 GBP
Retailer 9£1,308 GBP
Retailer 11£1,320 GBP
Retailer 10£1,334 GBP
Retailer 4£1,349 GBP
Retailer 3£1,437 GBP
Retailer 8£1,444 GBP
Retailer 12£1,579 GBP
Retailer 14£1,710 GBP
Retailer 7£1,862 GBP
Retailer 6£1,970 GBP
Retailer 5£2,011 GBP
Retailer 13£2,208 GBP
Helzberg Diamonds£2,365 GBP

35 data points across 14 retailers

14 retailers£1,294 GBP to £2,365 GBP

A
Cheapest Retailer
-
£1,294 GBP
A
Retailer 2
-
£1,308 GBP
View
A
Retailer 3
-
£1,320 GBP
View
A
Retailer 4
-
£1,334 GBP
View
A
Retailer 5
-
£1,349 GBP
View
A
Retailer 6
-
£1,437 GBP
View
A
Retailer 7
-
£1,444 GBP
View
A
Retailer 8
-
£1,579 GBP
View
B+
Retailer 9
-
£1,710 GBP
View
B+
Retailer 10
-
£1,725 GBP
View
B+
Retailer 11
-
£1,862 GBP
View
B+
Retailer 12
-
£2,011 GBP
View
B+
Retailer 13
-
£2,208 GBP
View
Most Expensive
B+
Helzberg Diamonds
XZRNLLHMLKKKN · Nov 6
£2,365 GBP
$3,183 USD
View
13 more retailers have this diamond
Prices start from £1,294 GBPSave up to £1,071 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
1.00ct Princess
£1,294 GBP