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Heart|Natural|GIA

1.21ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 6552581364

Certificate GIA 6552581364

Diamond specifications and retailer prices

From HK$13,156 HKD
As of November 2, 2026
Save HK$18,142 HKD (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$41,106 HKD at NZ Jewellers · As of September 25, 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 H 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 6552581364. Listed at 12 retailers as of November 2, 2026, with a 138% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552581364
Dimensions6.47 × 7.29 × 4.23 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.47 mm7.29 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552581364
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.9%

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 2
Current: HK$17,167 HKD|Low: HK$12,955 HKD|High: HK$34,856 HKD|Avg: HK$19,613 HKD|-4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 6HK$13,156 HKD
Retailer 9HK$14,335 HKD
Retailer 8HK$14,931 HKD
Retailer 10HK$15,555 HKD
Retailer 4HK$15,622 HKD
Retailer 5HK$16,791 HKD
Retailer 1HK$17,167 HKD
Retailer 2HK$26,870 HKD
Retailer 7HK$28,560 HKD
Retailer 3HK$31,299 HKD

40 data points across 10 retailers

12 retailersHK$13,156 HKD to HK$31,299 HKD

A
Cheapest Retailer
-
HK$13,156 HKD
A
Retailer 2
-
HK$14,335 HKD
$1,827 USD
View
A
Retailer 3
-
HK$14,931 HKD
$1,903 USD
View
Final sale: no returns
A
Retailer 4
-
HK$15,555 HKD
$1,983 USD
View
A
Retailer 5
-
HK$15,622 HKD
$1,991 USD
View
A
Retailer 6
-
HK$16,791 HKD
$2,140 USD
View
A
Retailer 7
-
HK$17,167 HKD
£1,723 GBP
View
B+
Retailer 8
-
HK$19,931 HKD
A$3,908 AUD
View
Retailer 9
-
HK$26,870 HKD
$3,425 USD
View
Price last confirmed 7 days ago
B
Retailer 10
-
HK$28,560 HKD
$3,640 USD
View
B
Retailer 11
-
HK$31,299 HKD
£3,141 GBP
View
Most Expensive
NZ Jewellers
6173e6b6-e200-4ca0-9bfb-b2af4827b16b · Sep 25
HK$41,106 HKD
$5,239 USD
View
Price last confirmed 38 days ago
11 more retailers have this diamond
Prices start from HK$13,156 HKDSave up to HK$18,142 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$13,156 HKD