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Radiant|Natural|IGI

1.00ct H SI1 Radiant Natural Diamond

VG • H/SI1 • IGI 713520856

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

Certificate IGI 713520856

Diamond specifications and retailer prices

From £808 GBP
As of November 6, 2026
Save £1,328 GBP (62%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,135 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 713520856. Listed at 16 retailers as of November 5, 2026, with prices from £808 to £2,135, a £1,328 spread on the same certified stone. NZ Jewellers lists it at £2,135. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.8°
Pavilion angle31.3°
OriginNatural
Grading LabIGI
CertificateIGI 713520856
Dimensions5.84 × 5.09 × 3.56 mm
L/W Ratio1.15
Culet sizePointed
Top View
5.84 mm5.09 mm1.00 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 713520856
Side View
Table 64.0%Crown 44.8°Girdle: STK-THKPavilion 31.3°Culet: NoneDepth 69.9%

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: £2,135 GBP|Low: £808 GBP|High: £2,135 GBP|Avg: £1,096 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 4£808 GBP
Retailer 10£837 GBP
Retailer 6£849 GBP
Retailer 11£876 GBP
Retailer 12£876 GBP
Retailer 5£909 GBP
Retailer 3£965 GBP
Retailer 2£1,005 GBP
Retailer 7£1,010 GBP
Retailer 8£1,068 GBP
Retailer 9£1,598 GBP
NZ Jewellers£2,135 GBP

30 data points across 12 retailers

16 retailers£808 GBP to £2,135 GBP

A
Cheapest Retailer
-
£808 GBP
Final sale: no returns
A
Retailer 2
-
£837 GBP
View
A
Retailer 3
-
£839 GBP
View
A
Retailer 4
-
£840 GBP
View
A
Retailer 5
-
£849 GBP
View
A
Retailer 6
-
£876 GBP
View
Retailer 7
-
£876 GBP
View
Price last confirmed 9 days ago
A
Retailer 8
-
£909 GBP
View
A
Retailer 9
-
£924 GBP
View
A
Retailer 10
-
£965 GBP
View
B+
Retailer 11
-
£976 GBP
View
A
Retailer 12
-
£1,005 GBP
View
A
Retailer 13
-
£1,010 GBP
View
A
Retailer 14
-
£1,068 GBP
View
B+
Retailer 15
-
£1,598 GBP
View
Most Expensive
B
NZ Jewellers
c6bff212-e76d-481f-a905-115d9f1bd832 · Nov 5
£2,135 GBP
$2,858 USD
View
15 more retailers have this diamond
Prices start from £808 GBPSave up to £1,328 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
£808 GBP