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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 1543577711

Certificate GIA 1543577711

Diamond specifications and retailer prices

From HK$23,575 HKD
As of November 6, 2026
Save HK$28,136 HKD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$60,340 HKD at NZ Jewellers · As of September 30, 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 1543577711. Listed at 17 retailers as of November 2, 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543577711
Dimensions7.23 × 7.94 × 4.63 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Feather, Crystal, Cavity, Needle
Top View
7.23 mm7.94 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1543577711
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.3%

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$24,899 HKD|Low: HK$23,575 HKD|High: HK$55,677 HKD|Avg: HK$32,419 HKD|-12.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9HK$23,575 HKD
Retailer 1HK$24,899 HKD
Retailer 2HK$28,544 HKD
Retailer 4HK$29,727 HKD
Retailer 6HK$30,824 HKD
Retailer 5HK$31,326 HKD
Retailer 10HK$32,071 HKD
Retailer 8HK$32,290 HKD
Retailer 3HK$34,798 HKD
Retailer 7HK$51,711 HKD

37 data points across 10 retailers

17 retailersHK$23,575 HKD to HK$51,711 HKD

A
Cheapest Retailer
-
HK$23,575 HKD
A
Retailer 2
-
HK$24,899 HKD
View
A
Retailer 3
-
HK$28,544 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$29,727 HKD
View
A
Retailer 5
-
HK$30,824 HKD
View
A
Retailer 6
-
HK$31,326 HKD
View
B+
Retailer 7
-
HK$31,875 HKD
View
B+
Retailer 8
-
HK$32,071 HKD
View
B+
Retailer 9
-
HK$32,290 HKD
View
B+
Retailer 10
-
HK$33,865 HKD
View
Retailer 11
-
HK$34,633 HKD
View
Price last confirmed 30 days ago
Retailer 12
-
HK$34,633 HKD
View
Price last confirmed 37 days ago
Retailer 13
-
HK$34,633 HKD
View
Price last confirmed 30 days ago
B+
Retailer 14
-
HK$34,798 HKD
View
Retailer 15
-
HK$39,963 HKD
View
Price last confirmed 39 days ago
B
Retailer 16
-
HK$51,711 HKD
View
Most Expensive
NZ Jewellers
ee8781a8-47d7-4023-85f6-2e41dd61f5b5 · Sep 30
HK$60,340 HKD
$7,699 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from HK$23,575 HKDSave up to HK$28,136 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$23,575 HKD