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Heart|Natural|IGI

1.05ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 737519431

Shape and cutting style on the report: Heart brilliant

Certificate IGI 737519431

Diamond specifications and retailer prices

From HK$10,071 HKD
As of November 2, 2026
Save HK$15,111 HKD (60%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$25,182 HKD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.05ct natural heart diamond

This 1.05ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 737519431. Listed at 6 retailers as of November 2, 2026, with prices from HK$10,071 to HK$25,182, a HK$15,111 spread on the same certified stone. NZ Jewellers lists it at HK$25,182. 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

1.05
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 737519431
Dimensions6.25 × 7.03 × 4.17 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Top View
6.25 mm7.03 mm1.05 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 737519431
Side View
Table 61.0%Crown 37°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 59.3%

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 2
Current: HK$25,182 HKD|Low: HK$10,063 HKD|High: HK$25,252 HKD|Avg: HK$14,144 HKD|-0.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2HK$10,071 HKD
Retailer 6HK$10,322 HKD
Retailer 4HK$10,345 HKD
Retailer 5HK$10,800 HKD
Retailer 7HK$12,603 HKD
Retailer 8HK$12,869 HKD
Retailer 3HK$18,912 HKD
NZ JewellersHK$25,182 HKD

28 data points across 8 retailers

6 retailersHK$10,071 HKD to HK$25,182 HKD

A
Cheapest Retailer
-
HK$10,071 HKD
A
Retailer 2
-
HK$10,322 HKD
View
A
Retailer 3
-
HK$10,345 HKD
View
B+
Retailer 4
-
HK$10,800 HKD
View
B
Retailer 5
-
HK$18,912 HKD
View
Most Expensive
C
NZ Jewellers
dc0f2369-1832-434f-b89e-09916d04dbdd · Nov 3
HK$25,182 HKD
$3,213 USD
View
5 more retailers have this diamond
Prices start from HK$10,071 HKDSave up to HK$15,111 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.

A
1.05ct Heart
HK$10,071 HKD