Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6541235789

Certificate GIA 6541235789

Diamond specifications and retailer prices

From HK$15,063 HKD
As of November 6, 2026
13 retailers carry this diamond
Most expensive: HK$33,599 HKD at NZ Jewellers · As of October 24, 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 6541235789. Listed at 13 retailers as of November 6, 2026. 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
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6541235789
Dimensions6.77 × 7.26 × 4.24 mm
L/W Ratio1.07
Top View
6.77 mm7.26 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6541235789
Side View
Table 57.0%CrownGirdle: THN-XTKPavilionCulet: NoneDepth 58.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: HK$33,599 HKD|Low: HK$10,228 HKD|High: HK$34,798 HKD|Avg: HK$16,190 HKD|-3.4%
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
October 24, 2026
Retailer 9HK$10,228 HKD
Retailer 2HK$10,463 HKD
Retailer 14HK$12,720 HKD
Retailer 7HK$13,449 HKD
Retailer 10HK$13,778 HKD
Retailer 3HK$13,982 HKD
Retailer 13HK$14,264 HKD
Retailer 12HK$14,342 HKD
Retailer 8HK$14,413 HKD
Retailer 11HK$15,142 HKD
Retailer 4HK$15,894 HKD
Retailer 6HK$19,037 HKD
Retailer 5HK$24,555 HKD
NZ JewellersHK$33,599 HKD

26 data points across 14 retailers

13 retailers

Retailer 1
-
HK$10,228 HKD
Price last confirmed 12 days ago
Retailer 2
-
HK$10,463 HKD
View
Price last confirmed 13 days ago
Retailer 3
-
HK$13,778 HKD
View
Price last confirmed 15 days ago
Retailer 4
-
HK$13,982 HKD
View
Price last confirmed 13 days ago
Retailer 5
-
HK$14,264 HKD
View
Price last confirmed 14 days ago
Retailer 6
-
HK$14,342 HKD
View
Price last confirmed 14 days ago
Retailer 7
-
HK$14,413 HKD
View
Price last confirmed 15 days ago
B+
Retailer 8
-
HK$15,063 HKD
View
Retailer 9
-
HK$15,142 HKD
View
Price last confirmed 13 days ago
Retailer 10
-
HK$15,894 HKD
View
Price last confirmed 14 days ago
Retailer 11
-
HK$19,037 HKD
View
Price last confirmed 32 days ago
Retailer 12
-
HK$24,555 HKD
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
f1a2d860-d537-431d-b040-66519a43dec2 · Oct 24
HK$33,599 HKD
$4,287 USD
View
Price last confirmed 13 days ago
12 more retailers have this diamond
Prices start from HK$15,063 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$15,063 HKD