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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 $2,354 USD
As of November 6, 2026
Save $881 USD (27%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,235 USD 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 $2,354 to $3,235, a $881 spread on the same certified stone. MOH London lists it at $3,235. 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
Color
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: $3,235 USD|Low: $1,936 USD|High: $3,283 USD|Avg: $2,514 USD|-0.3%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$1,936 USD
Retailer 2$2,354 USD
MOH London$3,235 USD

24 data points across 3 retailers

2 retailers$2,354 USD to $3,235 USD

C
Cheapest Retailer
-
$2,354 USD
Most Expensive
C
MOH London
5615DF06E · Nov 4
$3,235 USD
£2,547 GBP
View
1 more retailer has this diamond
Prices start from $2,354 USDSave up to $881 USD

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
$2,354 USD