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Heart|Natural|GIA

1.59ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 2557582242

Certificate GIA 2557582242

Diamond specifications and retailer prices

From HK$21,443 HKD
As of November 1, 2026
Save HK$26,569 HKD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$54,039 HKD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.59ct natural heart diamond

This 1.59ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557582242. Listed at 14 retailers as of November 1, 2026, with a 124% 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

1.59
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557582242
Dimensions6.97 × 8.13 × 4.78 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
6.97 mm8.13 mm1.59 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557582242
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.8%

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 1
Current: HK$27,470 HKD|Low: HK$21,365 HKD|High: HK$52,487 HKD|Avg: HK$30,275 HKD|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11HK$21,443 HKD
Retailer 9HK$21,663 HKD
Retailer 12HK$23,026 HKD
Retailer 7HK$23,426 HKD
Retailer 3HK$24,076 HKD
Retailer 4HK$25,197 HKD
Retailer 8HK$26,726 HKD
Retailer 1HK$27,470 HKD
Retailer 10HK$29,578 HKD
Retailer 5HK$35,143 HKD
Retailer 2HK$44,368 HKD
Retailer 6HK$48,012 HKD

39 data points across 12 retailers

14 retailersHK$21,443 HKD to HK$48,012 HKD

A
Cheapest Retailer
-
HK$21,443 HKD
A
Retailer 2
-
HK$21,663 HKD
View
A
Retailer 3
-
HK$23,026 HKD
View
A
Retailer 4
-
HK$23,426 HKD
View
A
Retailer 5
-
HK$24,076 HKD
View
Final sale: no returns
A
Retailer 6
-
HK$25,197 HKD
View
A
Retailer 7
-
HK$26,726 HKD
View
A
Retailer 8
-
HK$27,470 HKD
View
B+
Retailer 9
-
HK$29,578 HKD
View
B+
Retailer 10
-
HK$30,346 HKD
View
B+
Retailer 11
-
HK$35,143 HKD
View
B
Retailer 12
-
HK$44,368 HKD
View
B
Retailer 13
-
HK$48,012 HKD
View
Most Expensive
NZ Jewellers
a4e07a9e-3e48-4ff0-9393-b25ce73f04c1 · Sep 25
HK$54,039 HKD
$6,895 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from HK$21,443 HKDSave up to HK$26,569 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
1.59ct Heart
HK$21,443 HKD