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Radiant|Natural|HRD

1.28ct F SI2 Radiant Natural Diamond

F/SI2 • HRD 190000115921

Certificate HRD 190000115921

Diamond specifications and retailer prices

From $5,564 AUD
As of November 6, 2026
Save $2,866 AUD (34%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $8,430 AUD at MOH London · As of November 7, 2026
View at MOH London

About this 1.28ct natural radiant diamond

This 1.28ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI2 clarity (slightly-included) and certified by HRD 190000115921. Listed at 3 retailers as of November 6, 2026, with prices from $5,564 to $8,430, a $2,866 spread on the same certified stone. MOH London lists it at $8,430. 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

1.28
Carat
F
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 190000115921
Dimensions7.41 × 5.31 × 4.01 mm
L/W Ratio1.40
Girdle conditionPolished
Top View
7.41 mm5.31 mm1.28 ctF / SI2
OriginNatural
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateHRD 190000115921
Side View
Table 81.0%CrownGirdle: ThinPavilionCuletDepth 75.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,430 AUD|Low: $5,445 AUD|High: $8,576 AUD|Avg: $6,418 AUD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 2$5,564 AUD
Retailer 5$5,605 AUD
Retailer 3$5,990 AUD
Retailer 4$6,436 AUD
MOH London$8,430 AUD

23 data points across 5 retailers

3 retailers$5,564 AUD to $8,430 AUD

B+
Cheapest Retailer
-
$5,564 AUD
B+
Retailer 2
-
$5,605 AUD
View
Most Expensive
C
MOH London
7A53B07AE · Nov 7
$8,430 AUD
£4,561 GBP
View
2 more retailers have this diamond
Prices start from $5,564 AUDSave up to $2,866 AUD

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.

B+
1.28ct Radiant
$5,564 AUD