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Heart|Natural|GIA

1.21ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 5536547731

Certificate GIA 5536547731

Diamond specifications and retailer prices

From HK$18,206 HKD
As of November 6, 2026
Save HK$24,931 HKD (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$43,137 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5536547731. Listed at 16 retailers as of November 5, 2026, with prices from HK$18,206 to HK$43,137, a HK$24,931 spread on the same certified stone. NZ Jewellers lists it at HK$43,137. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.93°
Pavilion angle37.8°
OriginNatural
Grading LabGIA
CertificateGIA 5536547731
Dimensions6.75 × 7.33 × 4.10 mm
L/W Ratio1.09
Top View
6.75 mm7.33 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5536547731
Side View
Table 58.0%Crown 38.93°Girdle: ThickPavilion 37.8°Culet: NoneDepth 55.9%

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$43,137 HKD|Low: HK$18,206 HKD|High: HK$44,462 HKD|Avg: HK$23,941 HKD|-3.0%
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 7, 2026
Retailer 10HK$18,206 HKD
Retailer 9HK$18,763 HKD
Retailer 6HK$19,249 HKD
Retailer 5HK$19,946 HKD
Retailer 11HK$19,985 HKD
Retailer 4HK$20,636 HKD
Retailer 2HK$21,263 HKD
Retailer 7HK$21,263 HKD
Retailer 13HK$21,427 HKD
Retailer 8HK$21,443 HKD
Retailer 15HK$22,047 HKD
Retailer 14HK$23,457 HKD
Retailer 12HK$25,244 HKD
Retailer 3HK$36,044 HKD
NZ JewellersHK$43,137 HKD

29 data points across 15 retailers

16 retailersHK$18,206 HKD to HK$43,137 HKD

A
Cheapest Retailer
-
HK$18,206 HKD
A
Retailer 2
-
HK$18,763 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$19,249 HKD
View
B+
Retailer 4
-
HK$19,946 HKD
View
B+
Retailer 5
-
HK$19,985 HKD
View
B+
Retailer 6
-
HK$20,636 HKD
View
Retailer 7
-
HK$21,263 HKD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
HK$21,263 HKD
View
Retailer 9
-
HK$21,263 HKD
View
Price last confirmed 22 days ago
B+
Retailer 10
-
HK$21,427 HKD
View
B+
Retailer 11
-
HK$21,443 HKD
View
B+
Retailer 12
-
HK$22,047 HKD
View
B+
Retailer 13
-
HK$23,457 HKD
View
B+
Retailer 14
-
HK$25,244 HKD
View
B
Retailer 15
-
HK$36,044 HKD
View
Most Expensive
B
NZ Jewellers
2704d1ca-bb02-4ad5-89b1-f0c3c53b1006 · Nov 5
HK$43,137 HKD
$5,504 USD
View
15 more retailers have this diamond
Prices start from HK$18,206 HKDSave up to HK$24,931 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$18,206 HKD