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Heart|Natural|GIA

0.51ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 7531577715

Certificate GIA 7531577715

Diamond specifications and retailer prices

From HK$4,334 HKD
As of November 6, 2026
Save HK$6,515 HKD (60%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$10,849 HKD at MOH London · As of November 2, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7531577715. Listed at 18 retailers as of November 2, 2026, with prices from HK$4,334 to HK$10,849, a HK$6,515 spread on the same certified stone. MOH London lists it at HK$10,849. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7531577715
Dimensions4.90 × 5.47 × 3.14 mm
L/W Ratio1.12
Key to symbols
Feather, Cloud
Top View
4.90 mm5.47 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7531577715
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.4%

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$10,849 HKD|Low: HK$3,464 HKD|High: HK$10,979 HKD|Avg: HK$5,972 HKD|-1.2%
MOH London
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
November 7, 2026
Retailer 15HK$3,480 HKD
Retailer 4HK$4,334 HKD
Retailer 3HK$4,444 HKD
Retailer 6HK$5,063 HKD
Retailer 13HK$5,063 HKD
Retailer 8HK$5,306 HKD
Retailer 11HK$5,713 HKD
Retailer 10HK$5,768 HKD
Retailer 14HK$5,886 HKD
Retailer 7HK$6,192 HKD
Retailer 9HK$6,435 HKD
Retailer 2HK$6,583 HKD
Retailer 5HK$7,061 HKD
Retailer 12HK$7,250 HKD
MOH LondonHK$10,849 HKD

35 data points across 15 retailers

18 retailersHK$4,334 HKD to HK$10,849 HKD

Retailer 1
-
HK$3,480 HKD
Price last confirmed 15 days ago
Retailer 2
-
HK$3,856 HKD
View
Price last confirmed 15 days ago
A
Retailer 3
-
HK$4,334 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$4,444 HKD
View
Retailer 5
-
HK$4,702 HKD
View
Price last confirmed 45 days ago
B+
Retailer 6
-
HK$5,063 HKD
View
B+
Retailer 7
-
HK$5,306 HKD
View
Retailer 8
-
HK$5,423 HKD
View
Price last confirmed 46 days ago
B+
Retailer 9
-
HK$5,713 HKD
View
B+
Retailer 10
-
HK$5,729 HKD
View
B+
Retailer 11
-
HK$5,768 HKD
View
B+
Retailer 12
-
HK$5,886 HKD
View
B+
Retailer 13
-
HK$6,192 HKD
View
B+
Retailer 14
-
HK$6,435 HKD
View
B+
Retailer 15
-
HK$6,583 HKD
View
Retailer 16
-
HK$7,061 HKD
View
Price last confirmed 34 days ago
B+
Retailer 17
-
HK$7,250 HKD
View
Most Expensive
B
MOH London
68B94455F · Nov 2
HK$10,849 HKD
£1,090 GBP
View
17 more retailers have this diamond
Prices start from HK$4,334 HKDSave up to HK$6,515 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
0.51ct Heart
HK$4,334 HKD