CaratHunter
Plans
Heart|Natural|HRD

1.21ct D SI2 Heart Natural Diamond

VG • D/SI2 • HRD 260000071653

Certificate HRD 260000071653

Diamond specifications and retailer prices

From $3,170 AUD
As of November 6, 2026
Save $3,595 AUD (53%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $6,765 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by HRD 260000071653. Listed at 5 retailers as of November 3, 2026, with prices from $3,170 to $6,765, a $3,595 spread on the same certified stone. NZ Jewellers lists it at $6,765. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle41.62°
Pavilion angle41.59°
OriginNatural
Grading LabHRD
CertificateHRD 260000071653
Dimensions6.57 × 7.29 × 4.41 mm
L/W Ratio1.11
Girdle conditionMedium
Top View
6.57 mm7.29 mm1.21 ctD / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000071653
Side View
Table 62.0%Crown 41.62°GirdlePavilion 41.59°Culet: NoneDepth 60.5%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $6,765 AUD|Low: $3,170 AUD|High: $7,006 AUD|Avg: $4,597 AUD|-3.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4$3,170 AUD
Retailer 5$3,235 AUD
Retailer 3$3,385 AUD
Retailer 2$5,669 AUD
NZ Jewellers$6,765 AUD

14 data points across 5 retailers

5 retailers$3,170 AUD to $6,765 AUD

A
Cheapest Retailer
-
$3,170 AUD
A
Retailer 2
-
$3,235 AUD
View
A
Retailer 3
-
$3,385 AUD
View
B
Retailer 4
-
$5,669 AUD
View
Most Expensive
B
NZ Jewellers
9efa447e-3970-47be-8335-15262c1b974f · Nov 3
$6,765 AUD
$4,648 USD
View
4 more retailers have this diamond
Prices start from $3,170 AUDSave up to $3,595 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
$3,170 AUD