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Radiant|Natural|IGI

1.00ct H SI2 Radiant Natural Diamond

VG • H/SI2 • IGI 700528979

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

Certificate IGI 700528979

Diamond specifications and retailer prices

From £897 GBP
As of November 4, 2026
Save £1,461 GBP (62%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,358 GBP at NZ Jewellers · As of November 3, 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 700528979. Listed at 14 retailers as of November 3, 2026, with prices from £897 to £2,358, a £1,461 spread on the same certified stone. NZ Jewellers lists it at £2,358. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle43.6°
Pavilion angle31.8°
OriginNatural
Grading LabIGI
CertificateIGI 700528979
Dimensions6.15 × 4.87 × 3.57 mm
L/W Ratio1.26
Culet sizeNone
Top View
6.15 mm4.87 mm1.00 ctH / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateIGI 700528979
Side View
Table 61.0%Crown 43.6°Girdle: STK-THKPavilion 31.8°Culet: NoneDepth 73.3%

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 4
Current: £2,358 GBP|Low: £817 GBP|High: £2,358 GBP|Avg: £1,158 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 3, 2026
Retailer 16£892 GBP
Retailer 6£897 GBP
Retailer 15£915 GBP
Retailer 10£956 GBP
Retailer 5£967 GBP
Retailer 11£967 GBP
Retailer 4£1,002 GBP
Retailer 9£1,004 GBP
Retailer 3£1,006 GBP
Retailer 14£1,066 GBP
Retailer 7£1,067 GBP
Retailer 13£1,115 GBP
Retailer 8£1,150 GBP
Retailer 2£1,344 GBP
Retailer 12£1,770 GBP
NZ Jewellers£2,358 GBP

42 data points across 16 retailers

14 retailers£897 GBP to £2,358 GBP

A
Cheapest Retailer
-
£897 GBP
B+
Retailer 2
-
£915 GBP
View
A
Retailer 3
-
£956 GBP
View
B+
Retailer 4
-
£967 GBP
View
Retailer 5
-
£967 GBP
View
Price last confirmed 9 days ago
B+
Retailer 6
-
£1,002 GBP
View
B+
Retailer 7
-
£1,004 GBP
View
B+
Retailer 8
-
£1,006 GBP
View
A
Retailer 9
-
£1,066 GBP
View
B+
Retailer 10
-
£1,067 GBP
View
B+
Retailer 11
-
£1,115 GBP
View
B+
Retailer 12
-
£1,344 GBP
View
B
Retailer 13
-
£1,770 GBP
View
Most Expensive
B
NZ Jewellers
002258a4-b8f1-4f67-a92a-447cb97fc264 · Nov 3
£2,358 GBP
$3,156 USD
View
13 more retailers have this diamond
Prices start from £897 GBPSave up to £1,461 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
£897 GBP