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Heart|Natural|GIA

1.20ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 5231766973

Certificate GIA 5231766973

Diamond specifications and retailer prices

From HK$10,737 HKD
As of November 5, 2026
Save HK$15,495 HKD (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$26,232 HKD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct 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 5231766973. Listed at 6 retailers as of November 3, 2026, with prices from HK$10,737 to HK$26,232, a HK$15,495 spread on the same certified stone. NZ Jewellers lists it at HK$26,232. 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

1.20
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.91°
Pavilion angle41.33°
OriginNatural
Grading LabGIA
CertificateGIA 5231766973
Dimensions6.35 × 7.26 × 4.50 mm
L/W Ratio1.14
Top View
6.35 mm7.26 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231766973
Side View
Table 59.0%Crown 38.91°GirdlePavilion 41.33°CuletDepth 61.9%

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 5
Current: HK$26,232 HKD|Low: HK$10,737 HKD|High: HK$26,655 HKD|Avg: HK$14,799 HKD|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4HK$10,737 HKD
Retailer 5HK$10,753 HKD
Retailer 2HK$11,059 HKD
Retailer 6HK$11,255 HKD
Retailer 7HK$13,128 HKD
Retailer 8HK$13,567 HKD
Retailer 9HK$15,197 HKD
Retailer 3HK$19,695 HKD
NZ JewellersHK$26,232 HKD

27 data points across 9 retailers

6 retailersHK$10,737 HKD to HK$26,232 HKD

A
Cheapest Retailer
-
HK$10,737 HKD
A
Retailer 2
-
HK$10,753 HKD
View
A
Retailer 3
-
HK$11,059 HKD
View
A
Retailer 4
-
HK$11,255 HKD
View
B
Retailer 5
-
HK$19,695 HKD
View
Most Expensive
B
NZ Jewellers
6ef88574-af0f-459b-a711-ebfd9ecd2e29 · Nov 3
HK$26,232 HKD
$3,347 USD
View
5 more retailers have this diamond
Prices start from HK$10,737 HKDSave up to HK$15,495 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
1.20ct Heart
HK$10,737 HKD