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Radiant|Natural|HRD

0.99ct K SI2 Radiant Natural Diamond

K/SI2 • HRD 12018509036

Certificate HRD 12018509036

Diamond specifications and retailer prices

From £1,759 GBP
As of November 6, 2026
Save £658 GBP (27%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,417 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.99ct natural radiant diamond

This 0.99ct natural radiant sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included) and certified by HRD 12018509036. Listed at 2 retailers as of November 4, 2026, with prices from £1,759 to £2,417, a £658 spread on the same certified stone. MOH London lists it at £2,417. 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

0.99
Carat
K
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishGood
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 12018509036
Dimensions6.48 × 5.12 × 3.54 mm
L/W Ratio1.27
Girdle conditionPolished
Top View
6.48 mm5.12 mm0.99 ctK / SI2
OriginNatural
PolishGood
SymmetryGood
FluorescenceMedium
CertificateHRD 12018509036
Side View
Table 76.0%CrownGirdle: MediumPavilionCuletDepth 69.1%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 6
Current: £2,417 GBP|Low: £1,446 GBP|High: £2,453 GBP|Avg: £1,878 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3£1,446 GBP
Retailer 2£1,759 GBP
MOH London£2,417 GBP

24 data points across 3 retailers

2 retailers£1,759 GBP to £2,417 GBP

C
Cheapest Retailer
-
£1,759 GBP
Most Expensive
C
MOH London
5615DF06E · Nov 4
£2,417 GBP
View
1 more retailer has this diamond
Prices start from £1,759 GBPSave up to £658 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
0.99ct Radiant
£1,759 GBP