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Heart|Natural|GIA

0.51ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6561393717

Certificate GIA 6561393717

Diamond specifications and retailer prices

From HK$4,859 HKD
As of November 6, 2026
Save HK$3,038 HKD (38%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$7,898 HKD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded G 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 6561393717. Listed at 9 retailers as of November 6, 2026, with prices from HK$4,859 to HK$7,898, a HK$3,038 spread on the same certified stone. Wholesale Diamonds Direct lists it at HK$7,898. 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

0.51
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.37°
Pavilion angle38.41°
OriginNatural
Grading LabGIA
CertificateGIA 6561393717
Dimensions4.74 × 5.49 × 3.26 mm
L/W Ratio1.16
Culet sizeNone
Top View
4.74 mm5.49 mm0.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561393717
Side View
Table 58.0%Crown 40.37°Girdle: STK-THKPavilion 38.41°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$7,743 HKD|Low: HK$4,859 HKD|High: HK$8,371 HKD|Avg: HK$6,523 HKD|-5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 6, 2026
Retailer 5HK$4,859 HKD
Retailer 8HK$5,282 HKD
Retailer 2HK$5,431 HKD
Retailer 3HK$5,604 HKD
Retailer 4HK$6,145 HKD
Retailer 7HK$6,207 HKD
Retailer 6HK$6,866 HKD
Retailer 1HK$7,743 HKD
Wholesale Diamonds DirectHK$7,898 HKD

41 data points across 9 retailers

9 retailersHK$4,859 HKD to HK$7,898 HKD

B+
Cheapest Retailer
-
HK$4,859 HKD
B+
Retailer 2
-
HK$5,282 HKD
View
B+
Retailer 3
-
HK$5,431 HKD
View
B+
Retailer 4
-
HK$5,604 HKD
View
B
Retailer 5
-
HK$6,145 HKD
View
B
Retailer 6
-
HK$6,207 HKD
View
B
Retailer 7
-
HK$6,866 HKD
View
B
Retailer 8
-
HK$7,743 HKD
View
Most Expensive
B
Wholesale Diamonds Direct
545794721 · Nov 6
HK$7,898 HKD
$1,008 USD
View
8 more retailers have this diamond
Prices start from HK$4,859 HKDSave up to HK$3,038 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.

B+
0.51ct Heart
HK$4,859 HKD