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Heart|Natural|GIA

1.20ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 6515647551

Certificate GIA 6515647551

Diamond specifications and retailer prices

From HK$16,631 HKD
As of November 6, 2026
Save HK$24,939 HKD (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$41,570 HKD at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6515647551. Listed at 15 retailers as of November 5, 2026, with prices from HK$16,631 to HK$41,570, a HK$24,939 spread on the same certified stone. NZ Jewellers lists it at HK$41,570. 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6515647551
Dimensions7.54 × 6.63 × 4.31 mm
L/W Ratio1.14
Top View
7.54 mm6.63 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515647551
Side View
Table 64.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 57.2%

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$41,570 HKD|Low: HK$16,631 HKD|High: HK$41,805 HKD|Avg: HK$22,351 HKD|-0.6%
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
November 6, 2026
Retailer 3HK$16,631 HKD
Retailer 5HK$17,438 HKD
Retailer 10HK$18,018 HKD
Retailer 4HK$18,112 HKD
Retailer 14HK$18,410 HKD
Retailer 12HK$18,731 HKD
Retailer 11HK$18,849 HKD
Retailer 2HK$19,288 HKD
Retailer 13HK$20,785 HKD
Retailer 7HK$21,043 HKD
Retailer 6HK$22,517 HKD
Retailer 8HK$24,265 HKD
Retailer 9HK$34,743 HKD
NZ JewellersHK$41,570 HKD

33 data points across 14 retailers

15 retailersHK$16,631 HKD to HK$41,570 HKD

A
Cheapest Retailer
-
HK$16,631 HKD
Final sale: no returns
A
Retailer 2
-
HK$17,438 HKD
View
B+
Retailer 3
-
HK$18,018 HKD
View
Retailer 4
-
HK$18,112 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$18,410 HKD
View
B+
Retailer 6
-
HK$18,731 HKD
View
B+
Retailer 7
-
HK$18,849 HKD
View
B+
Retailer 8
-
HK$19,108 HKD
View
B+
Retailer 9
-
HK$19,288 HKD
View
B+
Retailer 10
-
HK$20,785 HKD
View
B+
Retailer 11
-
HK$21,043 HKD
View
Retailer 12
-
HK$22,517 HKD
View
Price last confirmed 30 days ago
B+
Retailer 13
-
HK$24,265 HKD
View
B
Retailer 14
-
HK$34,743 HKD
View
Most Expensive
B
NZ Jewellers
0295613a-2162-44ef-ae4c-6b601a5228dc · Nov 5
HK$41,570 HKD
$5,304 USD
View
14 more retailers have this diamond
Prices start from HK$16,631 HKDSave up to HK$24,939 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$16,631 HKD