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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 2558582288

Certificate GIA 2558582288

Diamond specifications and retailer prices

From HK$23,481 HKD
As of November 6, 2026
Save HK$28,740 HKD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$59,306 HKD at NZ Jewellers · As of September 25, 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 2558582288. Listed at 13 retailers as of November 2, 2026, with a 122% 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 2558582288
Dimensions7.02 × 7.80 × 4.64 mm
L/W Ratio1.11
Girdle conditionFaceted
Top View
7.02 mm7.80 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558582288
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.4%

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$31,624 HKD|Low: HK$23,175 HKD|High: HK$56,147 HKD|Avg: HK$33,239 HKD|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 11HK$23,481 HKD
Retailer 8HK$23,575 HKD
Retailer 5HK$25,205 HKD
Retailer 2HK$25,252 HKD
Retailer 10HK$26,106 HKD
Retailer 7HK$29,625 HKD
Retailer 1HK$31,624 HKD
Retailer 4HK$35,135 HKD
Retailer 9HK$42,008 HKD
Retailer 3HK$48,733 HKD
Retailer 6HK$52,221 HKD

35 data points across 11 retailers

13 retailersHK$23,481 HKD to HK$52,221 HKD

A
Cheapest Retailer
-
HK$23,481 HKD
A
Retailer 2
-
HK$23,575 HKD
View
A
Retailer 3
-
HK$25,205 HKD
View
A
Retailer 4
-
HK$25,252 HKD
View
A
Retailer 5
-
HK$26,106 HKD
View
Final sale: no returns
A
Retailer 6
-
HK$29,625 HKD
View
A
Retailer 7
-
HK$31,624 HKD
View
B+
Retailer 8
-
HK$33,865 HKD
View
B+
Retailer 9
-
HK$35,135 HKD
View
B+
Retailer 10
-
HK$42,008 HKD
View
B+
Retailer 11
-
HK$48,733 HKD
View
B
Retailer 12
-
HK$52,221 HKD
View
Most Expensive
NZ Jewellers
79b6de24-c94c-44b2-a0a4-19c056c56763 · Sep 25
HK$59,306 HKD
$7,567 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from HK$23,481 HKDSave up to HK$28,740 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$23,481 HKD