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Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 6551196917

Certificate GIA 6551196917

Diamond specifications and retailer prices

From HK$18,213 HKD
SGD 3,137 SGD
As of October 31, 2026
Save HK$15,078 HKD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$33,291 HKD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

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 6551196917. Listed at 11 retailers as of October 27, 2026, with prices from HK$18,213 to HK$33,291, a HK$15,078 spread on the same certified stone. Wholesale Diamonds Direct lists it at HK$33,291. 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 angle43.8°
Pavilion angle38.08°
OriginNatural
Grading LabGIA
CertificateGIA 6551196917
Dimensions6.78 × 7.90 × 4.72 mm
L/W Ratio1.17
Culet sizeNone
Top View
6.78 mm7.90 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551196917
Side View
Table 59.0%Crown 43.8°Girdle: THN-STKPavilion 38.08°Culet: NoneDepth 59.7%

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: Oct 31
Current: HK$21,365 HKD|Low: HK$18,213 HKD|High: HK$35,894 HKD|Avg: HK$23,520 HKD|-5.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
November 2, 2026
Retailer 6HK$18,213 HKD
Retailer 9HK$19,230 HKD
Retailer 4HK$19,442 HKD
Retailer 3HK$19,782 HKD
Retailer 1HK$21,365 HKD
Retailer 8HK$21,540 HKD
Retailer 7HK$23,223 HKD
Retailer 5HK$23,380 HKD
Retailer 2HK$24,808 HKD
Wholesale Diamonds DirectHK$33,291 HKD

36 data points across 10 retailers

11 retailersHK$18,213 HKD to HK$33,291 HKD

A
Cheapest Retailer
-
HK$18,213 HKD
SGD 3,137 SGD
A
Retailer 2
-
HK$19,230 HKD
$2,451 USD
View
A
Retailer 3
-
HK$19,442 HKD
$2,478 USD
View
A
Retailer 4
-
HK$19,782 HKD
$2,521 USD
View
A
Retailer 5
-
HK$21,365 HKD
£2,144 GBP
View
A
Retailer 6
-
HK$21,540 HKD
SGD 3,710 SGD
View
A
Retailer 7
-
HK$23,223 HKD
$2,960 USD
View
A
Retailer 8
-
HK$23,294 HKD
$2,969 USD
View
A
Retailer 9
-
HK$23,380 HKD
$2,980 USD
View
A
Retailer 10
-
HK$24,808 HKD
$3,162 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
387037273 · Oct 27
HK$33,291 HKD
$4,243 USD
View
10 more retailers have this diamond
Prices start from HK$18,213 HKDSave up to HK$15,078 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$18,213 HKD