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Heart|Natural|GIA

1.20ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 3555609127

Certificate GIA 3555609127

Diamond specifications and retailer prices

From HK$11,544 HKD
As of November 6, 2026
Save HK$25,848 HKD (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$37,392 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555609127. Listed at 8 retailers as of November 5, 2026, with prices from HK$11,544 to HK$37,392, a HK$25,848 spread on the same certified stone. NZ Jewellers lists it at HK$37,392. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555609127
Dimensions6.53 × 7.35 × 4.27 mm
L/W Ratio1.13
Girdle conditionThick
Top View
6.53 mm7.35 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555609127
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 58.1%

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$37,392 HKD|Low: HK$11,544 HKD|High: HK$37,392 HKD|Avg: HK$19,917 HKD|+6.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2HK$11,544 HKD
Retailer 7HK$12,234 HKD
Retailer 6HK$13,849 HKD
Retailer 4HK$16,404 HKD
Retailer 5HK$16,647 HKD
Retailer 3HK$20,816 HKD
Retailer 8HK$26,780 HKD
NZ JewellersHK$37,392 HKD

35 data points across 8 retailers

8 retailersHK$11,544 HKD to HK$37,392 HKD

A
Cheapest Retailer
-
HK$11,544 HKD
A
Retailer 2
-
HK$12,234 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$13,849 HKD
View
B+
Retailer 4
-
HK$16,404 HKD
View
B+
Retailer 5
-
HK$16,647 HKD
View
B+
Retailer 6
-
HK$20,816 HKD
View
B
Retailer 7
-
HK$26,780 HKD
View
Most Expensive
C
NZ Jewellers
09864021-c292-4cb7-a6d4-cf127ea330cb · Nov 5
HK$37,392 HKD
$4,771 USD
View
7 more retailers have this diamond
Prices start from HK$11,544 HKDSave up to HK$25,848 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$11,544 HKD