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Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 1553482029

Certificate GIA 1553482029

Diamond specifications and retailer prices

From HK$15,949 HKD
As of November 6, 2026
Save HK$20,181 HKD (56%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$36,130 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 G 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 1553482029. Listed at 5 retailers as of November 5, 2026, with prices from HK$15,949 to HK$36,130, a HK$20,181 spread on the same certified stone. NZ Jewellers lists it at HK$36,130. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1553482029
Dimensions6.58 × 7.27 × 4.20 mm
L/W Ratio1.10
Key to symbols
Crystal, Feather, Twinning Wisp, Needle
Top View
6.58 mm7.27 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1553482029
Side View
Table 55.0%CrownGirdle: STK-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$36,130 HKD|Low: HK$14,029 HKD|High: HK$40,723 HKD|Avg: HK$24,840 HKD|-11.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5HK$15,949 HKD
Retailer 4HK$17,446 HKD
Retailer 2HK$21,451 HKD
Retailer 6HK$22,274 HKD
Retailer 3HK$30,182 HKD
NZ JewellersHK$36,130 HKD

28 data points across 6 retailers

5 retailersHK$15,949 HKD to HK$36,130 HKD

A
Cheapest Retailer
-
HK$15,949 HKD
Final sale: no returns
A
Retailer 2
-
HK$17,446 HKD
View
B+
Retailer 3
-
HK$21,451 HKD
View
B
Retailer 4
-
HK$30,182 HKD
View
Most Expensive
B
NZ Jewellers
5c92c21c-43fd-4a01-9bfd-c14e597894f5 · Nov 5
HK$36,130 HKD
$4,610 USD
View
4 more retailers have this diamond
Prices start from HK$15,949 HKDSave up to HK$20,181 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$15,949 HKD