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Princess|Natural|IGI

1.00ct J SI1 Princess Natural Diamond

VG • J/SI1 • IGI 808619810

Shape and cutting style on the report: Princess cut

Certificate IGI 808619810

Diamond specifications and retailer prices

From £978 GBP
$1,310 USD
As of October 25, 2026
Save £1,647 GBP (63%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,625 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural princess diamond

This 1ct natural princess sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 808619810. Listed at 17 retailers as of October 25, 2026, with prices from £978 to £2,625, a £1,647 spread on the same certified stone. NZ Jewellers lists it at £2,625. 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.9°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 808619810
Dimensions5.37 × 5.16 × 3.93 mm
L/W Ratio1.04
Top View
5.37 mm5.16 mm1.00 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 808619810
Side View
Table 78.0%Crown 47.9°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 76.2%

Caratlytics Score

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

Price History

Last verified: Oct 25
Current: £2,625 GBP|Low: £807 GBP|High: £2,625 GBP|Avg: £1,162 GBP|+3.9%
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 9£978 GBP
Retailer 6£993 GBP
Retailer 8£997 GBP
Retailer 14£1,053 GBP
Retailer 3£1,076 GBP
Retailer 15£1,076 GBP
Retailer 5£1,083 GBP
Retailer 7£1,123 GBP
Retailer 17£1,126 GBP
Retailer 16£1,149 GBP
Retailer 13£1,177 GBP
Retailer 2£1,220 GBP
Retailer 10£1,242 GBP
Retailer 11£1,314 GBP
Retailer 12£1,500 GBP
Retailer 4£1,896 GBP
NZ Jewellers£2,625 GBP

28 data points across 17 retailers

17 retailers£978 GBP to £2,625 GBP

B+
Cheapest Retailer
-
£978 GBP
$1,310 USD
B+
Retailer 2
-
£993 GBP
$1,331 USD
View
Final sale: no returns
B+
Retailer 3
-
£997 GBP
$1,336 USD
View
B+
Retailer 4
-
£1,053 GBP
View
B+
Retailer 5
-
£1,076 GBP
$1,442 USD
View
B+
Retailer 6
-
£1,076 GBP
$1,442 USD
View
B+
Retailer 7
-
£1,083 GBP
$1,451 USD
View
B+
Retailer 8
-
£1,123 GBP
$1,505 USD
View
B
Retailer 9
-
£1,126 GBP
$1,509 USD
View
B
Retailer 10
-
£1,149 GBP
$1,540 USD
View
B
Retailer 11
-
£1,177 GBP
$1,578 USD
View
B
Retailer 12
-
£1,220 GBP
View
B
Retailer 13
-
£1,242 GBP
$1,664 USD
View
B
Retailer 14
-
£1,314 GBP
ZAR 28,438 ZAR
View
B
Retailer 15
-
£1,500 GBP
€1,914 EUR
View
C
Retailer 16
-
£1,896 GBP
View
Most Expensive
C
NZ Jewellers
41c4a475-46a0-4357-98d6-dac0c4b0a739 · Oct 30
£2,625 GBP
$3,517 USD
View
16 more retailers have this diamond
Prices start from £978 GBPSave up to £1,647 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+
1.00ct Princess
£978 GBP