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Heart|Natural|IGI

1.21ct H SI1 Heart Natural Diamond

VG • H/SI1 • IGI 732579315

Shape and cutting style on the report: Heart brilliant

Certificate IGI 732579315

Diamond specifications and retailer prices

From $3,534 NZD
As of November 5, 2026
Save $5,781 NZD (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $9,315 NZD at NZ Jewellers · As of November 5, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 732579315. Listed at 7 retailers as of November 5, 2026, with prices from $3,534 to $9,315, a $5,781 spread on the same certified stone. NZ Jewellers lists it at $9,315. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle39.7°
OriginNatural
Grading LabIGI
CertificateIGI 732579315
Dimensions6.32 × 7.09 × 4.41 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Top View
6.32 mm7.09 mm1.21 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 732579315
Side View
Table 60.0%Crown 41.5°Girdle: STK-VTKPavilion 39.7°Culet: NoneDepth 62.2%

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 5
Current: $9,315 NZD|Low: $3,258 NZD|High: $9,315 NZD|Avg: $5,083 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 4$3,534 NZD
Retailer 3$3,651 NZD
Retailer 8$4,113 NZD
Retailer 11$4,346 NZD
Retailer 6$4,456 NZD
Retailer 7$4,484 NZD
Retailer 10$4,658 NZD
Retailer 5$4,661 NZD
Retailer 9$4,954 NZD
Retailer 2$7,764 NZD
NZ Jewellers$9,315 NZD

31 data points across 11 retailers

7 retailers$3,534 NZD to $9,315 NZD

B+
Cheapest Retailer
-
$3,534 NZD
B+
Retailer 2
-
$4,113 NZD
View
Final sale: no returns
B
Retailer 3
-
$4,456 NZD
View
B+
Retailer 4
-
$4,484 NZD
View
B
Retailer 5
-
$4,661 NZD
View
C
Retailer 6
-
$7,764 NZD
View
Most Expensive
C
NZ Jewellers
f2383d6c-82f1-461d-b5a2-aad7d4d6f7d5 · Nov 5
$9,315 NZD
$5,164 USD
View
6 more retailers have this diamond
Prices start from $3,534 NZDSave up to $5,781 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
$3,534 NZD