CaratHunter
Plans
Princess|Natural|GIA

1.00ct K SI1 Princess Natural Diamond

GD • K/SI1 • GIA 2554401592

Certificate GIA 2554401592

Diamond specifications and retailer prices

From £817 GBP
As of November 4, 2026
Save £1,733 GBP (68%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,551 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural princess diamond

This 1ct natural princess sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2554401592. Listed at 23 retailers as of November 4, 2026, with prices from £817 to £2,551, a £1,733 spread on the same certified stone. NZ Jewellers lists it at £2,551. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle22.04°
Pavilion angle40.77°
OriginNatural
Grading LabGIA
CertificateGIA 2554401592
Dimensions5.60 × 5.59 × 4.03 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
5.60 mm5.59 mm1.00 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554401592
Side View
Table 79.0%Crown 22.04°Girdle: THK-VTKPavilion 40.77°Culet: NoneDepth 72.2%

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: £1,014 GBP|Low: £817 GBP|High: £1,926 GBP|Avg: £1,152 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11£817 GBP
Retailer 7£820 GBP
Retailer 3£941 GBP
Retailer 8£1,000 GBP
Retailer 1£1,014 GBP
Retailer 4£1,135 GBP
Retailer 2£1,146 GBP
Retailer 6£1,147 GBP
Retailer 9£1,276 GBP
Retailer 5£1,449 GBP
Retailer 10£1,915 GBP

28 data points across 11 retailers

23 retailers£817 GBP to £2,551 GBP

B+
Cheapest Retailer
-
£817 GBP
A
Retailer 2
-
£820 GBP
View
B+
Retailer 3
-
£941 GBP
View
B+
Retailer 4
-
£969 GBP
View
B+
Retailer 5
-
£1,000 GBP
View
B+
Retailer 6
-
£1,014 GBP
View
Retailer 7
-
£1,045 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£1,045 GBP
View
B+
Retailer 9
-
£1,077 GBP
View
B+
Retailer 10
-
£1,094 GBP
View
B
Retailer 11
-
£1,122 GBP
View
B
Retailer 12
-
£1,135 GBP
View
B
Retailer 13
-
£1,146 GBP
View
B
Retailer 14
-
£1,146 GBP
View
B
Retailer 15
-
£1,147 GBP
View
B
Retailer 16
-
£1,148 GBP
View
B
Retailer 17
-
£1,207 GBP
View
B
Retailer 18
-
£1,276 GBP
View
B
Retailer 19
-
£1,449 GBP
View
B
Retailer 20
-
£1,526 GBP
View
B
Retailer 21
-
£1,569 GBP
View
B
Retailer 22
-
£1,915 GBP
View
Most Expensive
C
NZ Jewellers
32273b69-f78e-4572-96cd-a6bfee857c9a · Nov 5
£2,551 GBP
$3,433 USD
View
22 more retailers have this diamond
Prices start from £817 GBPSave up to £1,733 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
£817 GBP