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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 2556424615

Certificate GIA 2556424615

Diamond specifications and retailer prices

From HK$25,950 HKD
As of November 5, 2026
Save HK$30,879 HKD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$62,331 HKD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I 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 2556424615. Listed at 15 retailers as of November 4, 2026, with a 119% 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

1.51
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556424615
Dimensions7.08 × 7.99 × 4.41 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
7.08 mm7.99 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556424615
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.1%

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$62,331 HKD|Low: HK$25,950 HKD|High: HK$63,843 HKD|Avg: HK$38,172 HKD|-2.4%
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 14HK$25,950 HKD
Retailer 10HK$26,177 HKD
Retailer 4HK$28,348 HKD
Retailer 2HK$29,194 HKD
Retailer 5HK$29,672 HKD
Retailer 6HK$29,704 HKD
Retailer 7HK$30,738 HKD
Retailer 9HK$32,447 HKD
Retailer 13HK$32,995 HKD
Retailer 12HK$33,865 HKD
Retailer 11HK$46,554 HKD
Retailer 8HK$53,733 HKD
Retailer 3HK$56,829 HKD
NZ JewellersHK$62,331 HKD

26 data points across 14 retailers

15 retailersHK$25,950 HKD to HK$56,829 HKD

A
Cheapest Retailer
-
HK$25,950 HKD
A
Retailer 2
-
HK$26,177 HKD
View
A
Retailer 3
-
HK$28,348 HKD
View
A
Retailer 4
-
HK$29,194 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$29,672 HKD
View
A
Retailer 6
-
HK$29,704 HKD
View
A
Retailer 7
-
HK$30,738 HKD
View
A
Retailer 8
-
HK$32,447 HKD
View
A
Retailer 9
-
HK$32,995 HKD
View
A
Retailer 10
-
HK$33,865 HKD
View
B+
Retailer 11
-
HK$36,718 HKD
View
B
Retailer 12
-
HK$46,554 HKD
View
B
Retailer 13
-
HK$53,733 HKD
View
B
Retailer 14
-
HK$56,829 HKD
View
Most Expensive
NZ Jewellers
f9d93be4-a7b3-4f11-9949-bab1c55ecbc4 · Oct 24
HK$62,331 HKD
$7,953 USD
View
Price last confirmed 13 days ago
14 more retailers have this diamond
Prices start from HK$25,950 HKDSave up to HK$30,879 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
1.51ct Heart
HK$25,950 HKD