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1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • HRD 240000194311

Shape and cutting style on the report: Round

Certificate HRD 240000194311

Diamond specifications and retailer prices

From $5,568 AUD
As of November 6, 2026
Save $5,456 AUD (49%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $11,025 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 240000194311. Listed at 10 retailers as of November 5, 2026, with prices from $5,568 to $11,025, a $5,456 spread on the same certified stone. NZ Jewellers lists it at $11,025. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.8°
OriginNatural
Grading LabHRD
CertificateHRD 240000194311
Dimensions6.81 × 6.77 × 4.25 mm
L/W Ratio1.01
Top View
6.81 mm6.77 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 240000194311
Side View
Table 57.0%Crown 35.4°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $11,025 AUD|Low: $5,223 AUD|High: $11,025 AUD|Avg: $7,445 AUD|+2.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 10$5,568 AUD
Retailer 7$5,720 AUD
Retailer 6$5,841 AUD
Retailer 5$6,328 AUD
Retailer 9$6,328 AUD
Retailer 11$6,328 AUD
Retailer 2$7,107 AUD
Retailer 8$7,302 AUD
Retailer 4$10,051 AUD
Retailer 3$10,603 AUD
NZ Jewellers$11,025 AUD

28 data points across 11 retailers

10 retailers$5,568 AUD to $11,025 AUD

B+
Cheapest Retailer
-
$5,568 AUD
B+
Retailer 2
-
$5,720 AUD
View
B+
Retailer 3
-
$5,841 AUD
View
Final sale: no returns
B
Retailer 4
-
$6,328 AUD
View
Retailer 5
-
$6,328 AUD
View
Price last confirmed 9 days ago
B
Retailer 6
-
$6,328 AUD
View
B+
Retailer 7
-
$7,107 AUD
View
B
Retailer 8
-
$7,302 AUD
View
B
Retailer 9
-
$10,051 AUD
View
Most Expensive
B
NZ Jewellers
f8c4f8a5-1d45-437c-9044-d06df5801fa9 · Nov 5
$11,025 AUD
$7,575 USD
View
9 more retailers have this diamond
Prices start from $5,568 AUDSave up to $5,456 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+
1.21ct Round
$5,568 AUD