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Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1549768433

Certificate GIA 1549768433

Diamond specifications and retailer prices

From HK$13,739 HKD
As of November 6, 2026
Save HK$18,026 HKD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$38,113 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1549768433. Listed at 18 retailers as of November 2, 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1549768433
Dimensions6.68 × 7.17 × 4.43 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Indented Natural, Natural
Top View
6.68 mm7.17 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1549768433
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.7%

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$38,113 HKD|Low: HK$13,739 HKD|High: HK$38,113 HKD|Avg: HK$21,281 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 13HK$13,739 HKD
Retailer 2HK$14,374 HKD
Retailer 11HK$16,216 HKD
Retailer 14HK$16,733 HKD
Retailer 5HK$18,230 HKD
Retailer 6HK$18,230 HKD
Retailer 3HK$19,076 HKD
Retailer 8HK$19,131 HKD
Retailer 9HK$19,703 HKD
Retailer 4HK$21,036 HKD
Retailer 10HK$22,133 HKD
Retailer 7HK$22,517 HKD
Retailer 12HK$31,765 HKD
NZ JewellersHK$38,113 HKD

30 data points across 14 retailers

18 retailersHK$13,739 HKD to HK$31,765 HKD

A
Cheapest Retailer
-
HK$13,739 HKD
A
Retailer 2
-
HK$14,374 HKD
View
B+
Retailer 3
-
HK$16,216 HKD
View
B+
Retailer 4
-
HK$16,733 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$17,376 HKD
View
B+
Retailer 6
-
HK$17,399 HKD
View
Retailer 7
-
HK$18,230 HKD
View
Price last confirmed 19 days ago
Retailer 8
-
HK$18,230 HKD
View
Price last confirmed 21 days ago
B
Retailer 9
-
HK$18,629 HKD
View
Retailer 10
-
HK$19,076 HKD
View
Price last confirmed 21 days ago
B
Retailer 11
-
HK$19,131 HKD
View
B
Retailer 12
-
HK$19,703 HKD
View
Retailer 13
-
HK$21,036 HKD
View
Price last confirmed 18 days ago
B+
Retailer 14
-
HK$22,133 HKD
View
B
Retailer 15
-
HK$22,517 HKD
View
Retailer 16
-
HK$22,564 HKD
View
Price last confirmed 30 days ago
B
Retailer 17
-
HK$31,765 HKD
View
Most Expensive
NZ Jewellers
1d8c86bb-cf4d-4e68-8c48-ec0ff29708cf · Oct 18
HK$38,113 HKD
$4,863 USD
View
Price last confirmed 19 days ago
17 more retailers have this diamond
Prices start from HK$13,739 HKDSave up to HK$18,026 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$13,739 HKD