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Heart|Natural|GIA

1.21ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 5536984909

Certificate GIA 5536984909

Diamond specifications and retailer prices

From HK$13,167 HKD
As of November 6, 2026
Save HK$22,619 HKD (63%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$35,786 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 I 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 5536984909. Listed at 16 retailers as of November 5, 2026, with prices from HK$13,167 to HK$35,786, a HK$22,619 spread on the same certified stone. NZ Jewellers lists it at HK$35,786. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.07°
Pavilion angle43°
OriginNatural
Grading LabGIA
CertificateGIA 5536984909
Dimensions7.43 × 6.55 × 4.46 mm
L/W Ratio1.13
Top View
7.43 mm6.55 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5536984909
Side View
Table 60.0%Crown 36.07°Girdle: STK-VTKPavilion 43°Culet: NoneDepth 60.0%

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$35,786 HKD|Low: HK$13,167 HKD|High: HK$36,867 HKD|Avg: HK$18,856 HKD|-2.9%
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
Retailer 15
November 6, 2026
Retailer 9HK$13,167 HKD
Retailer 2HK$13,339 HKD
Retailer 10HK$14,209 HKD
Retailer 4HK$14,672 HKD
Retailer 6HK$14,719 HKD
Retailer 7HK$15,118 HKD
Retailer 5HK$15,346 HKD
Retailer 12HK$15,526 HKD
Retailer 13HK$15,690 HKD
Retailer 8HK$15,761 HKD
Retailer 15HK$15,871 HKD
Retailer 14HK$16,678 HKD
Retailer 11HK$19,633 HKD
Retailer 3HK$25,628 HKD
NZ JewellersHK$35,786 HKD

30 data points across 15 retailers

16 retailersHK$13,167 HKD to HK$35,786 HKD

A
Cheapest Retailer
-
HK$13,167 HKD
A
Retailer 2
-
HK$13,339 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$14,209 HKD
View
A
Retailer 4
-
HK$14,672 HKD
View
A
Retailer 5
-
HK$14,719 HKD
View
Retailer 6
-
HK$15,118 HKD
View
Price last confirmed 8 days ago
Retailer 7
-
HK$15,118 HKD
View
Price last confirmed 21 days ago
A
Retailer 8
-
HK$15,346 HKD
View
A
Retailer 9
-
HK$15,526 HKD
View
A
Retailer 10
-
HK$15,690 HKD
View
A
Retailer 11
-
HK$15,761 HKD
View
B+
Retailer 12
-
HK$15,871 HKD
View
A
Retailer 13
-
HK$16,678 HKD
View
B+
Retailer 14
-
HK$19,633 HKD
View
B
Retailer 15
-
HK$25,628 HKD
View
Most Expensive
B
NZ Jewellers
a466cf9b-e0f0-4729-a109-7e13c56f6111 · Nov 5
HK$35,786 HKD
$4,566 USD
View
15 more retailers have this diamond
Prices start from HK$13,167 HKDSave up to HK$22,619 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
1.21ct Heart
HK$13,167 HKD