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Radiant|Natural|IGI

1.00ct K SI2 Radiant Natural Diamond

VG • K/SI2 • IGI 808620061

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

Certificate IGI 808620061

Diamond specifications and retailer prices

From £680 GBP
As of November 4, 2026
Save £1,492 GBP (69%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,172 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 808620061. Listed at 13 retailers as of November 4, 2026, with prices from £680 to £2,172, a £1,492 spread on the same certified stone. NZ Jewellers lists it at £2,172. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle46.4°
Pavilion angle27.5°
OriginNatural
Grading LabIGI
CertificateIGI 808620061
Dimensions5.92 × 4.90 × 3.44 mm
L/W Ratio1.21
Top View
5.92 mm4.90 mm1.00 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 808620061
Side View
Table 63.0%Crown 46.4°Girdle: Very ThickPavilion 27.5°Culet: NoneDepth 70.2%

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: £2,172 GBP|Low: £680 GBP|High: £2,172 GBP|Avg: £903 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
November 6, 2026
Retailer 7£680 GBP
Retailer 9£693 GBP
Retailer 12£693 GBP
Retailer 3£700 GBP
Retailer 2£708 GBP
Retailer 10£714 GBP
Retailer 5£719 GBP
Retailer 4£769 GBP
Retailer 13£792 GBP
Retailer 11£799 GBP
Retailer 6£895 GBP
Retailer 8£1,266 GBP
NZ Jewellers£2,172 GBP

21 data points across 13 retailers

13 retailers£680 GBP to £2,172 GBP

B+
Cheapest Retailer
-
£680 GBP
Retailer 2
-
£693 GBP
View
Price last confirmed 9 days ago
B+
Retailer 3
-
£693 GBP
View
B+
Retailer 4
-
£700 GBP
View
A
Retailer 5
-
£708 GBP
View
B+
Retailer 6
-
£714 GBP
View
B+
Retailer 7
-
£719 GBP
View
B+
Retailer 8
-
£769 GBP
View
B+
Retailer 9
-
£792 GBP
View
B+
Retailer 10
-
£799 GBP
View
B+
Retailer 11
-
£895 GBP
View
B+
Retailer 12
-
£1,266 GBP
View
Most Expensive
C
NZ Jewellers
9848e113-4049-4ee3-921d-e04c9d01de69 · Nov 5
£2,172 GBP
$2,907 USD
View
12 more retailers have this diamond
Prices start from £680 GBPSave up to £1,492 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
£680 GBP