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Heart|Natural|GIA

1.21ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6542649830

Certificate GIA 6542649830

Diamond specifications and retailer prices

From HK$17,266 HKD
As of November 4, 2026
Save HK$26,835 HKD (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$44,101 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 6542649830. Listed at 15 retailers as of November 4, 2026, with prices from HK$17,266 to HK$44,101, a HK$26,835 spread on the same certified stone. NZ Jewellers lists it at HK$44,101. 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
FluorescenceNone
Crown angle37.21°
Pavilion angle38.86°
OriginNatural
Grading LabGIA
CertificateGIA 6542649830
Dimensions7.33 × 6.44 × 4.11 mm
L/W Ratio1.14
Top View
7.33 mm6.44 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542649830
Side View
Table 58.0%Crown 37.21°Girdle: Very ThickPavilion 38.86°Culet: NoneDepth 56.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$44,101 HKD|Low: HK$14,703 HKD|High: HK$44,101 HKD|Avg: HK$24,741 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5HK$17,642 HKD
Retailer 8HK$19,108 HKD
Retailer 9HK$19,108 HKD
Retailer 6HK$19,993 HKD
Retailer 2HK$20,738 HKD
Retailer 7HK$20,816 HKD
Retailer 3HK$22,321 HKD
Retailer 4HK$36,851 HKD
NZ JewellersHK$44,101 HKD

43 data points across 9 retailers

15 retailersHK$17,266 HKD to HK$44,101 HKD

B+
Cheapest Retailer
-
HK$17,266 HKD
B+
Retailer 2
-
HK$17,642 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$18,434 HKD
View
B+
Retailer 4
-
HK$19,108 HKD
View
Retailer 5
-
HK$19,108 HKD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
HK$19,993 HKD
View
B+
Retailer 7
-
HK$20,738 HKD
View
B+
Retailer 8
-
HK$20,816 HKD
View
B
Retailer 9
-
HK$21,945 HKD
View
B
Retailer 10
-
HK$21,945 HKD
View
B
Retailer 11
-
HK$22,054 HKD
View
B+
Retailer 12
-
HK$22,321 HKD
View
B
Retailer 13
-
HK$22,650 HKD
View
B
Retailer 14
-
HK$36,851 HKD
View
Most Expensive
B
NZ Jewellers
5fd23dc7-293c-4423-baa7-ab88def76700 · Nov 5
HK$44,101 HKD
$5,627 USD
View
14 more retailers have this diamond
Prices start from HK$17,266 HKDSave up to HK$26,835 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$17,266 HKD