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Heart|Natural|GIA

1.20ct J SI2 Heart Natural Diamond

ID • J/SI2 • GIA 1539286592

Certificate GIA 1539286592

Diamond specifications and retailer prices

From HK$11,129 HKD
As of November 6, 2026
Save HK$14,546 HKD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$35,754 HKD at NZ Jewellers · As of October 18, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1539286592. Listed at 15 retailers as of November 1, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1539286592
Dimensions7.36 × 6.60 × 4.26 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Crystal, Cavity, Needle, Indented Natural
Top View
7.36 mm6.60 mm1.20 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1539286592
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.8%

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 6
Current: HK$35,754 HKD|Low: HK$11,129 HKD|High: HK$36,123 HKD|Avg: HK$17,380 HKD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8HK$11,129 HKD
Retailer 2HK$11,678 HKD
Retailer 10HK$13,449 HKD
Retailer 6HK$13,904 HKD
Retailer 3HK$14,656 HKD
Retailer 7HK$15,205 HKD
Retailer 12HK$15,338 HKD
Retailer 9HK$15,643 HKD
Retailer 5HK$15,824 HKD
Retailer 4HK$16,913 HKD
Retailer 11HK$25,675 HKD
NZ JewellersHK$35,754 HKD

35 data points across 12 retailers

15 retailersHK$11,129 HKD to HK$25,675 HKD

A
Cheapest Retailer
-
HK$11,129 HKD
A
Retailer 2
-
HK$11,678 HKD
View
A
Retailer 3
-
HK$13,449 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$13,904 HKD
View
B+
Retailer 5
-
HK$14,076 HKD
View
Retailer 6
-
HK$14,656 HKD
View
Price last confirmed 21 days ago
Retailer 7
-
HK$14,656 HKD
View
Price last confirmed 19 days ago
B+
Retailer 8
-
HK$15,205 HKD
View
Retailer 9
-
HK$15,338 HKD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
HK$15,424 HKD
View
B+
Retailer 11
-
HK$15,643 HKD
View
B+
Retailer 12
-
HK$15,824 HKD
View
Retailer 13
-
HK$16,913 HKD
View
Price last confirmed 18 days ago
B
Retailer 14
-
HK$25,675 HKD
View
Most Expensive
NZ Jewellers
258dd2b5-1842-4f77-85bb-64125eaa28cf · Oct 18
HK$35,754 HKD
$4,562 USD
View
Price last confirmed 19 days ago
14 more retailers have this diamond
Prices start from HK$11,129 HKDSave up to HK$14,546 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
1.20ct Heart
HK$11,129 HKD