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Heart|Natural|GIA

0.51ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 5536726746

Certificate GIA 5536726746

Diamond specifications and retailer prices

From HK$6,497 HKD
$828 USD
As of November 2, 2026
Save HK$7,743 HKD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$24,378 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5536726746. Listed at 11 retailers as of November 1, 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

0.51
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle38.8°
OriginNatural
Grading LabGIA
CertificateGIA 5536726746
Dimensions4.76 × 5.51 × 3.29 mm
L/W Ratio1.16
Top View
4.76 mm5.51 mm0.51 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5536726746
Side View
Table 57.0%CrownGirdle: STK-ETKPavilion 38.8°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$24,378 HKD|Low: HK$5,712 HKD|High: HK$24,378 HKD|Avg: HK$10,070 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5HK$6,497 HKD
Retailer 8HK$7,046 HKD
Retailer 9HK$7,046 HKD
Retailer 6HK$7,313 HKD
Retailer 7HK$7,313 HKD
Retailer 10HK$8,129 HKD
Retailer 2HK$9,199 HKD
Retailer 4HK$9,742 HKD
Retailer 3HK$14,239 HKD
NZ JewellersHK$24,378 HKD

39 data points across 10 retailers

11 retailersHK$6,497 HKD to HK$14,239 HKD

B+
Cheapest Retailer
-
HK$6,497 HKD
$828 USD
Final sale: no returns
B+
Retailer 2
-
HK$6,768 HKD
$863 USD
View
B+
Retailer 3
-
HK$7,046 HKD
$898 USD
View
B+
Retailer 4
-
HK$7,195 HKD
$917 USD
View
B+
Retailer 5
-
HK$7,313 HKD
$932 USD
View
B+
Retailer 6
-
HK$7,313 HKD
$932 USD
View
B
Retailer 7
-
HK$8,129 HKD
$1,036 USD
View
B
Retailer 8
-
HK$9,199 HKD
£923 GBP
View
B
Retailer 9
-
HK$9,742 HKD
£978 GBP
View
B
Retailer 10
-
HK$14,239 HKD
£1,429 GBP
View
Most Expensive
NZ Jewellers
ae66c21a-9a3b-4208-9d3a-d74a0da28ed7 · Oct 30
HK$24,378 HKD
$3,107 USD
View
Price under review
10 more retailers have this diamond
Prices start from HK$6,497 HKDSave up to HK$7,743 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$6,497 HKD