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Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

ID • J/SI1 • GIA 2556719376

Certificate GIA 2556719376

Diamond specifications and retailer prices

From HK$20,111 HKD
As of November 6, 2026
Save HK$25,526 HKD (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$45,637 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556719376. Listed at 23 retailers as of November 5, 2026, with prices from HK$20,111 to HK$45,637, a HK$25,526 spread on the same certified stone. NZ Jewellers lists it at HK$45,637. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle39.38°
Pavilion angle38.46°
OriginNatural
Grading LabGIA
CertificateGIA 2556719376
Dimensions6.34 × 7.24 × 4.30 mm
L/W Ratio1.14
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.34 mm7.24 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556719376
Side View
Table 61.0%Crown 39.38°Girdle: STK-VTKPavilion 38.46°Culet: NoneDepth 59.3%

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 6
Current: HK$20,111 HKD|Low: HK$20,111 HKD|High: HK$44,266 HKD|Avg: HK$27,899 HKD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1HK$20,111 HKD
Retailer 9HK$20,158 HKD
Retailer 7HK$23,042 HKD
Retailer 10HK$25,009 HKD
Retailer 3HK$25,409 HKD
Retailer 5HK$27,102 HKD
Retailer 4HK$28,034 HKD
Retailer 2HK$30,190 HKD
Retailer 6HK$31,969 HKD
Retailer 8HK$43,686 HKD

25 data points across 10 retailers

23 retailersHK$20,111 HKD to HK$45,637 HKD

B+
Cheapest Retailer
-
HK$20,111 HKD
B+
Retailer 2
-
HK$20,158 HKD
View
B
Retailer 3
-
HK$22,470 HKD
View
B+
Retailer 4
-
HK$23,042 HKD
View
B
Retailer 5
-
HK$23,254 HKD
View
B
Retailer 6
-
HK$24,171 HKD
View
Final sale: no returns
B
Retailer 7
-
HK$25,009 HKD
View
B
Retailer 8
-
HK$25,315 HKD
View
B
Retailer 9
-
HK$25,409 HKD
View
B
Retailer 10
-
HK$26,193 HKD
View
Retailer 11
-
HK$26,193 HKD
View
Price last confirmed 8 days ago
B
Retailer 12
-
HK$27,102 HKD
View
B
Retailer 13
-
HK$27,204 HKD
View
B
Retailer 14
-
HK$27,321 HKD
View
Retailer 15
-
HK$27,980 HKD
View
Price last confirmed 30 days ago
B
Retailer 16
-
HK$28,027 HKD
View
B
Retailer 17
-
HK$28,034 HKD
View
B
Retailer 18
-
HK$28,951 HKD
View
B
Retailer 19
-
HK$30,221 HKD
View
B
Retailer 20
-
HK$31,969 HKD
View
B
Retailer 21
-
HK$38,999 HKD
View
B
Retailer 22
-
HK$43,686 HKD
View
Most Expensive
B
NZ Jewellers
64a0fccb-8343-41c4-9706-32672873e768 · Nov 5
HK$45,637 HKD
$5,823 USD
View
22 more retailers have this diamond
Prices start from HK$20,111 HKDSave up to HK$25,526 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+
1.20ct Heart
HK$20,111 HKD