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Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 7456939844

Certificate GIA 7456939844

Diamond specifications and retailer prices

From HK$20,565 HKD
$2,621 USD
As of November 1, 2026
Save HK$9,486 HKD (32%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$48,811 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 J 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 7456939844. Listed at 13 retailers as of November 1, 2026, with a 46% 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.5°
Pavilion angle37.97°
OriginNatural
Grading LabGIA
CertificateGIA 7456939844
Dimensions6.64 × 7.87 × 4.77 mm
L/W Ratio1.19
Top View
6.64 mm7.87 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7456939844
Side View
Table 62.0%Crown 46.5°Girdle: THN-THKPavilion 37.97°Culet: NoneDepth 60.6%

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$48,811 HKD|Low: HK$20,565 HKD|High: HK$48,811 HKD|Avg: HK$29,957 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 27, 2026
Retailer 17HK$20,565 HKD
Retailer 18HK$22,000 HKD
Retailer 19HK$22,660 HKD
Retailer 10HK$24,284 HKD
Retailer 14HK$25,382 HKD
Retailer 15HK$26,363 HKD
Retailer 11HK$27,202 HKD
Retailer 16HK$27,524 HKD
Retailer 12HK$28,057 HKD
Retailer 8HK$28,324 HKD
Retailer 4HK$29,109 HKD
Retailer 5HK$29,109 HKD
Retailer 2HK$29,572 HKD
Retailer 7HK$30,013 HKD
Retailer 3HK$30,051 HKD
Retailer 6HK$31,786 HKD
Retailer 9HK$38,906 HKD
Retailer 13HK$46,923 HKD
NZ JewellersHK$48,811 HKD

19 data points across 19 retailers

13 retailersHK$20,565 HKD to HK$30,051 HKD

A
Cheapest Retailer
-
HK$20,565 HKD
$2,621 USD
Retailer 2
-
HK$22,000 HKD
$2,804 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
HK$22,660 HKD
$2,888 USD
View
Retailer 4
-
HK$25,382 HKD
$3,235 USD
View
Price last confirmed 7 days ago
Retailer 5
-
HK$26,363 HKD
$3,360 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
HK$27,524 HKD
$3,508 USD
View
B+
Retailer 7
-
HK$28,057 HKD
£2,816 GBP
View
B+
Retailer 8
-
HK$29,109 HKD
$3,710 USD
View
B+
Retailer 9
-
HK$29,109 HKD
$3,710 USD
View
B+
Retailer 10
-
HK$29,572 HKD
$3,769 USD
View
B+
Retailer 11
-
HK$30,051 HKD
$3,830 USD
View
Retailer 12
-
HK$46,923 HKD
£4,709 GBP
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
5ff0a33f-bce3-4bc9-b74d-835c40274907 · Oct 24
HK$48,811 HKD
$6,221 USD
View
Price last confirmed 9 days ago
12 more retailers have this diamond
Prices start from HK$20,565 HKDSave up to HK$9,486 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$20,565 HKD