CaratHunter
Plans
Heart|Natural|HRD

1.21ct K SI2 Heart Natural Diamond

K/SI2 • HRD 260000134464

Certificate HRD 260000134464

Diamond specifications and retailer prices

From $2,553 NZD
As of November 4, 2026
Save $2,277 NZD (47%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,743 NZD at NZ Jewellers · As of October 24, 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 SI2 clarity (slightly-included) and certified by HRD 260000134464. Listed at 6 retailers as of November 4, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.21
Carat
K
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 260000134464
Dimensions6.53 × 7.24 × 4.23 mm
L/W Ratio1.11
Girdle conditionFaceted
Top View
6.53 mm7.24 mm1.21 ctK / SI2
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000134464
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 58.4%

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 4
Current: $6,743 NZD|Low: $2,148 NZD|High: $6,743 NZD|Avg: $3,925 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$2,148 NZD
Retailer 5$2,553 NZD
Retailer 6$2,904 NZD
Retailer 2$3,631 NZD
Retailer 4$4,014 NZD
Retailer 3$4,829 NZD
NZ Jewellers$6,743 NZD

24 data points across 7 retailers

6 retailers$2,553 NZD to $4,829 NZD

B+
Cheapest Retailer
-
$2,553 NZD
Final sale: no returns
B+
Retailer 2
-
$2,904 NZD
View
B+
Retailer 3
-
$3,631 NZD
View
B
Retailer 4
-
$4,014 NZD
View
B
Retailer 5
-
$4,829 NZD
View
Most Expensive
NZ Jewellers
dbdb4441-7847-4045-9be3-29d46c5a435d · Oct 24
$6,743 NZD
$3,738 USD
View
Price last confirmed 13 days ago
5 more retailers have this diamond
Prices start from $2,553 NZDSave up to $2,277 NZD

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 Heart
$2,553 NZD