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Radiant|Natural|HRD

1.00ct K SI2 Radiant Natural Diamond

K/SI2 • HRD 11001663005

Certificate HRD 11001663005

Diamond specifications and retailer prices

From £1,637 GBP
As of November 6, 2026
Save £615 GBP (27%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,252 GBP at MOH London · As of November 4, 2026
View at MOH London

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) and certified by HRD 11001663005. Listed at 2 retailers as of November 4, 2026, with prices from £1,637 to £2,252, a £615 spread on the same certified stone. MOH London lists it at £2,252. 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
-
Cut

Specifications

Cut
PolishGood
SymmetryFair
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 11001663005
Dimensions6.45 × 5.17 × 3.73 mm
L/W Ratio1.25
Girdle conditionPolished
Top View
6.45 mm5.17 mm1.00 ctK / SI2
OriginNatural
PolishGood
SymmetryFair
FluorescenceNone
CertificateHRD 11001663005
Side View
Table 75.0%CrownGirdle: MediumPavilionCulet: NoneDepth 72.1%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 6
Current: £2,252 GBP|Low: £1,602 GBP|High: £2,285 GBP|Avg: £1,947 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 2£1,637 GBP
Retailer 3£1,937 GBP
MOH London£2,252 GBP

22 data points across 3 retailers

2 retailers£1,637 GBP to £2,252 GBP

C
Cheapest Retailer
-
£1,637 GBP
Most Expensive
C
MOH London
CC1668A6E · Nov 4
£2,252 GBP
View
1 more retailer has this diamond
Prices start from £1,637 GBPSave up to £615 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.

C
1.00ct Radiant
£1,637 GBP