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Heart|Natural|IGI

1.00ct J I1 Heart Natural Diamond

GD • J/I1 • IGI 578343737

Shape and cutting style on the report: Heart brilliant

Certificate IGI 578343737

Diamond specifications and retailer prices

From HK$8,026 HKD
$1,023 USD
As of November 1, 2026
Save HK$12,428 HKD (61%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$20,454 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and I1 clarity (included), with a standard cut grade and certified by IGI 578343737. Listed at 7 retailers as of October 30, 2026, with prices from HK$8,026 to HK$20,454, a HK$12,428 spread on the same certified stone. NZ Jewellers lists it at HK$20,454. 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

1.00
Carat
J
Colour
I1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
Crown angle43.8°
Pavilion angle33.5°
OriginNatural
Grading LabIGI
CertificateIGI 578343737
Dimensions6.45 × 6.69 × 3.67 mm
L/W Ratio1.04
Girdle conditionFaceted
Top View
6.45 mm6.69 mm1.00 ctJ / I1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateIGI 578343737
Side View
Table 55.0%Crown 43.8°Girdle: THK-ETKPavilion 33.5°Culet: NoneDepth 56.9%

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 1
Current: HK$20,454 HKD|Low: HK$6,354 HKD|High: HK$20,454 HKD|Avg: HK$10,177 HKD|+1.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8HK$6,354 HKD
Retailer 6HK$8,026 HKD
Retailer 3HK$8,387 HKD
Retailer 5HK$8,387 HKD
Retailer 4HK$8,709 HKD
Retailer 7HK$9,674 HKD
Retailer 2HK$11,764 HKD
NZ JewellersHK$20,454 HKD

16 data points across 8 retailers

7 retailersHK$8,026 HKD to HK$20,454 HKD

B+
Cheapest Retailer
-
HK$8,026 HKD
$1,023 USD
B+
Retailer 2
-
HK$8,387 HKD
$1,069 USD
View
B+
Retailer 3
-
HK$8,387 HKD
$1,069 USD
View
B+
Retailer 4
-
HK$8,709 HKD
$1,110 USD
View
B+
Retailer 5
-
HK$9,674 HKD
$1,233 USD
View
B+
Retailer 6
-
HK$11,764 HKD
€1,428 EUR
View
Most Expensive
C
NZ Jewellers
166d80e0-3a37-4f16-afa1-cb30f74726d0 · Oct 30
HK$20,454 HKD
$2,607 USD
View
6 more retailers have this diamond
Prices start from HK$8,026 HKDSave up to HK$12,428 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+
1.00ct Heart
HK$8,026 HKD