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Heart|Natural|GIA

1.21ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 1419696942

Certificate GIA 1419696942

Diamond specifications and retailer prices

From HK$18,818 HKD
As of November 6, 2026
Save HK$26,420 HKD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$45,237 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct 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 1419696942. Listed at 18 retailers as of November 5, 2026, with prices from HK$18,818 to HK$45,237, a HK$26,420 spread on the same certified stone. NZ Jewellers lists it at HK$45,237. 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

1.21
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1419696942
Dimensions6.68 × 6.97 × 4.12 mm
L/W Ratio1.04
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Needle, Indented Natural
Top View
6.68 mm6.97 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1419696942
Side View
Table 59.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 59.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$18,818 HKD|Low: HK$18,818 HKD|High: HK$43,952 HKD|Avg: HK$27,680 HKD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1HK$18,818 HKD
Retailer 8HK$19,061 HKD
Retailer 7HK$23,528 HKD
Retailer 9HK$23,967 HKD
Retailer 2HK$25,871 HKD
Retailer 4HK$26,561 HKD
Retailer 5HK$26,867 HKD
Retailer 3HK$30,229 HKD
Retailer 6HK$43,302 HKD

28 data points across 9 retailers

18 retailersHK$18,818 HKD to HK$45,237 HKD

B+
Cheapest Retailer
-
HK$18,818 HKD
B+
Retailer 2
-
HK$19,061 HKD
View
B
Retailer 3
-
HK$22,172 HKD
View
B
Retailer 4
-
HK$23,528 HKD
View
B
Retailer 5
-
HK$23,967 HKD
View
Final sale: no returns
B
Retailer 6
-
HK$25,871 HKD
View
Retailer 7
-
HK$25,965 HKD
View
Price last confirmed 8 days ago
B
Retailer 8
-
HK$25,965 HKD
View
B
Retailer 9
-
HK$26,561 HKD
View
B
Retailer 10
-
HK$26,867 HKD
View
B
Retailer 11
-
HK$26,968 HKD
View
B
Retailer 12
-
HK$27,094 HKD
View
B
Retailer 13
-
HK$27,791 HKD
View
B
Retailer 14
-
HK$29,962 HKD
View
B
Retailer 15
-
HK$30,229 HKD
View
B
Retailer 16
-
HK$31,734 HKD
View
B
Retailer 17
-
HK$43,302 HKD
View
Most Expensive
B
NZ Jewellers
829fc394-96e8-45d4-8f62-a4f1fc867efa · Nov 5
HK$45,237 HKD
$5,772 USD
View
17 more retailers have this diamond
Prices start from HK$18,818 HKDSave up to HK$26,420 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+
1.21ct Heart
HK$18,818 HKD