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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 HK$15,353 HKD
As of November 5, 2026
Save HK$25,119 HKD (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$40,472 HKD 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 HK$15,353 to HK$40,472, a HK$25,119 spread on the same certified stone. NZ Jewellers lists it at HK$40,472. 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: HK$40,472 HKD|Low: HK$14,154 HKD|High: HK$40,472 HKD|Avg: HK$22,082 HKD
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 2HK$15,353 HKD
Retailer 3HK$15,863 HKD
Retailer 8HK$17,869 HKD
Retailer 11HK$18,880 HKD
Retailer 6HK$19,358 HKD
Retailer 7HK$19,484 HKD
Retailer 10HK$20,236 HKD
Retailer 5HK$20,252 HKD
Retailer 9HK$21,522 HKD
Retailer 4HK$33,818 HKD
NZ JewellersHK$40,472 HKD

30 data points across 11 retailers

7 retailersHK$15,353 HKD to HK$40,472 HKD

B+
Cheapest Retailer
-
HK$15,353 HKD
B+
Retailer 2
-
HK$17,869 HKD
View
Final sale: no returns
B
Retailer 3
-
HK$19,358 HKD
View
B+
Retailer 4
-
HK$19,484 HKD
View
B
Retailer 5
-
HK$20,252 HKD
View
C
Retailer 6
-
HK$33,818 HKD
View
Most Expensive
C
NZ Jewellers
f2383d6c-82f1-461d-b5a2-aad7d4d6f7d5 · Nov 5
HK$40,472 HKD
$5,164 USD
View
6 more retailers have this diamond
Prices start from HK$15,353 HKDSave up to HK$25,119 HKD

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
HK$15,353 HKD