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Radiant|Natural|IGI

1.00ct J SI2 Radiant Natural Diamond

VG • J/SI2 • IGI 743535404

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 743535404

Diamond specifications and retailer prices

From £723 GBP
As of November 6, 2026
Save £1,189 GBP (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,912 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 743535404. Listed at 13 retailers as of November 5, 2026, with prices from £723 to £1,912, a £1,189 spread on the same certified stone. NZ Jewellers lists it at £1,912. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle46.8°
Pavilion angle33.4°
OriginNatural
Grading LabIGI
CertificateIGI 743535404
Dimensions6.68 × 4.92 × 3.36 mm
L/W Ratio1.36
Culet sizePointed
Top View
6.68 mm4.92 mm1.00 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 743535404
Side View
Table 67.0%Crown 46.8°Girdle: MED-STKPavilion 33.4°Culet: NoneDepth 68.3%

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: £1,912 GBP|Low: £663 GBP|High: £1,912 GBP|Avg: £993 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5£723 GBP
Retailer 2£781 GBP
Retailer 9£784 GBP
Retailer 11£784 GBP
Retailer 8£812 GBP
Retailer 7£814 GBP
Retailer 10£846 GBP
Retailer 3£905 GBP
Retailer 4£1,094 GBP
Retailer 6£1,433 GBP
NZ Jewellers£1,912 GBP

45 data points across 11 retailers

13 retailers£723 GBP to £1,912 GBP

A
Cheapest Retailer
-
£723 GBP
Final sale: no returns
B+
Retailer 2
-
£751 GBP
View
A
Retailer 3
-
£781 GBP
View
B+
Retailer 4
-
£784 GBP
View
Retailer 5
-
£784 GBP
View
Price last confirmed 9 days ago
B+
Retailer 6
-
£812 GBP
View
B+
Retailer 7
-
£814 GBP
View
B+
Retailer 8
-
£846 GBP
View
B+
Retailer 9
-
£884 GBP
View
B+
Retailer 10
-
£905 GBP
View
B+
Retailer 11
-
£1,094 GBP
View
B
Retailer 12
-
£1,433 GBP
View
Most Expensive
B
NZ Jewellers
33271e23-3a64-4af8-9625-b86a75f93748 · Nov 5
£1,912 GBP
$2,559 USD
View
12 more retailers have this diamond
Prices start from £723 GBPSave up to £1,189 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 Radiant
£723 GBP