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Heart|Natural|GIA

1.51ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 6552652410

Certificate GIA 6552652410

Diamond specifications and retailer prices

From HK$32,541 HKD
As of November 6, 2026
Save HK$35,848 HKD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$71,313 HKD at NZ Jewellers · As of October 21, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552652410. Listed at 16 retailers as of November 4, 2026, with a 110% 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552652410
Dimensions7.87 × 6.97 × 4.55 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.87 mm6.97 mm1.51 ctI / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552652410
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.9%

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$71,313 HKD|Low: HK$29,712 HKD|High: HK$71,313 HKD|Avg: HK$47,846 HKD
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
November 6, 2026
Retailer 4HK$32,541 HKD
Retailer 5HK$35,660 HKD
Retailer 3HK$38,631 HKD
Retailer 2HK$40,629 HKD
Retailer 6HK$41,805 HKD
Retailer 10HK$43,733 HKD
Retailer 11HK$43,733 HKD
Retailer 13HK$44,571 HKD
Retailer 12HK$45,143 HKD
Retailer 7HK$48,451 HKD
Retailer 8HK$52,526 HKD
Retailer 9HK$68,389 HKD
NZ JewellersHK$71,313 HKD

38 data points across 13 retailers

16 retailersHK$32,541 HKD to HK$68,389 HKD

A
Cheapest Retailer
-
HK$32,541 HKD
A
Retailer 2
-
HK$32,690 HKD
View
B+
Retailer 3
-
HK$38,560 HKD
View
Retailer 4
-
HK$38,631 HKD
View
Price last confirmed 18 days ago
Retailer 5
-
HK$38,631 HKD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
HK$40,629 HKD
View
B+
Retailer 7
-
HK$41,805 HKD
View
B+
Retailer 8
-
HK$43,733 HKD
View
B+
Retailer 9
-
HK$43,733 HKD
View
B+
Retailer 10
-
HK$44,195 HKD
View
Retailer 11
-
HK$44,571 HKD
View
Price last confirmed 17 days ago
B
Retailer 12
-
HK$45,143 HKD
View
B+
Retailer 13
-
HK$48,451 HKD
View
B
Retailer 14
-
HK$52,526 HKD
View
B
Retailer 15
-
HK$68,389 HKD
View
Most Expensive
NZ Jewellers
5f69c31b-1f01-42cc-8698-0ea82b4976e0 · Oct 21
HK$71,313 HKD
$9,099 USD
View
Price last confirmed 16 days ago
15 more retailers have this diamond
Prices start from HK$32,541 HKDSave up to HK$35,848 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$32,541 HKD