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Heart|Natural|HRD

1.21ct K IF Heart Natural Diamond

EX • K/IF • HRD 260000071673

Certificate HRD 260000071673

Diamond specifications and retailer prices

From $3,021 AUD
As of November 1, 2026
Save $3,294 AUD (52%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,315 AUD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000071673. Listed at 4 retailers as of November 1, 2026, with prices from $3,021 to $6,315, a $3,294 spread on the same certified stone. NZ Jewellers lists it at $6,315. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
K
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.57°
Pavilion angle39.98°
OriginNatural
Grading LabHRD
CertificateHRD 260000071673
Dimensions6.50 × 7.47 × 4.35 mm
L/W Ratio1.15
Girdle conditionMedium
Top View
6.50 mm7.47 mm1.21 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000071673
Side View
Table 58.0%Crown 36.57°GirdlePavilion 39.98°CuletDepth 58.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,315 AUD|Low: $2,997 AUD|High: $6,379 AUD|Avg: $4,127 AUD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5$2,997 AUD
Retailer 3$3,021 AUD
Retailer 4$3,160 AUD
Retailer 6$3,660 AUD
Retailer 2$5,292 AUD
NZ Jewellers$6,315 AUD

13 data points across 6 retailers

4 retailers$3,021 AUD to $6,315 AUD

A
Cheapest Retailer
-
$3,021 AUD
A
Retailer 2
-
$3,160 AUD
View
B
Retailer 3
-
$5,292 AUD
View
Most Expensive
B
NZ Jewellers
e12d7ab3-aca0-4725-a42d-d76a5c1bd935 · Nov 3
$6,315 AUD
$4,339 USD
View
3 more retailers have this diamond
Prices start from $3,021 AUDSave up to $3,294 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.

A
1.21ct Heart
$3,021 AUD