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Heart|Natural|GIA

1.23ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 1246072305

Certificate GIA 1246072305

Diamond specifications and retailer prices

From HK$9,930 HKD
As of November 6, 2026
Save HK$23,018 HKD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$32,948 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1246072305. Listed at 11 retailers as of November 5, 2026, with prices from HK$9,930 to HK$32,948, a HK$23,018 spread on the same certified stone. NZ Jewellers lists it at HK$32,948. 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

1.23
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
Pavilion angle38.99°
OriginNatural
Grading LabGIA
CertificateGIA 1246072305
Dimensions6.30 × 7.36 × 4.39 mm
L/W Ratio1.17
Key to symbols
Feather, Twinning Wisp
Top View
6.30 mm7.36 mm1.23 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1246072305
Side View
Table 61.0%CrownGirdle: STK-VTKPavilion 38.99°Culet: NoneDepth 59.7%

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$32,948 HKD|Low: HK$9,930 HKD|High: HK$35,315 HKD|Avg: HK$17,750 HKD|-6.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11HK$9,930 HKD
Retailer 10HK$12,767 HKD
Retailer 8HK$13,504 HKD
Retailer 4HK$13,778 HKD
Retailer 2HK$13,817 HKD
Retailer 7HK$14,131 HKD
Retailer 3HK$14,993 HKD
Retailer 6HK$15,926 HKD
Retailer 5HK$20,738 HKD
Retailer 9HK$23,669 HKD
NZ JewellersHK$32,948 HKD

30 data points across 11 retailers

11 retailersHK$9,930 HKD to HK$32,948 HKD

A
Cheapest Retailer
-
HK$9,930 HKD
B+
Retailer 2
-
HK$12,767 HKD
View
A
Retailer 3
-
HK$13,504 HKD
View
B+
Retailer 4
-
HK$13,778 HKD
View
B+
Retailer 5
-
HK$13,817 HKD
View
B+
Retailer 6
-
HK$14,131 HKD
View
B+
Retailer 7
-
HK$14,993 HKD
View
B+
Retailer 8
-
HK$15,926 HKD
View
B+
Retailer 9
-
HK$20,738 HKD
View
B
Retailer 10
-
HK$23,669 HKD
View
Most Expensive
B
NZ Jewellers
fdde17d1-cee7-4b88-852b-47df3ef7bc74 · Nov 5
HK$32,948 HKD
$4,204 USD
View
10 more retailers have this diamond
Prices start from HK$9,930 HKDSave up to HK$23,018 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
1.23ct Heart
HK$9,930 HKD