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Heart|Natural|GIA

0.51ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 6561678771

Certificate GIA 6561678771

Diamond specifications and retailer prices

From HK$3,919 HKD
As of November 6, 2026
Save HK$1,881 HKD (32%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$5,800 HKD at RockHer · As of November 7, 2026
View at RockHer

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6561678771. Listed at 8 retailers as of November 6, 2026, with prices from HK$3,919 to HK$5,800, a HK$1,881 spread on the same certified stone. RockHer lists it at HK$5,800. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561678771
Dimensions5.37 × 6.36 × 1.71 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
5.37 mm6.36 mm0.51 ctF / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6561678771
Side View
Table 75.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 26.9%

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$5,188 HKD|Low: HK$3,919 HKD|High: HK$6,019 HKD|Avg: HK$4,772 HKD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
RockHer
November 6, 2026
Retailer 4HK$3,919 HKD
Retailer 6HK$4,287 HKD
Retailer 3HK$4,436 HKD
Retailer 1HK$5,188 HKD
Retailer 2HK$5,282 HKD
Retailer 5HK$5,322 HKD
RockHerHK$5,800 HKD

6 data points across 7 retailers

8 retailersHK$3,919 HKD to HK$5,800 HKD

B+
Cheapest Retailer
-
HK$3,919 HKD
Final sale: no returns
B+
Retailer 2
-
HK$4,287 HKD
View
B
Retailer 3
-
HK$4,436 HKD
View
B
Retailer 4
-
HK$4,577 HKD
View
B
Retailer 5
-
HK$5,188 HKD
View
B
Retailer 6
-
HK$5,282 HKD
View
B
Retailer 7
-
HK$5,322 HKD
View
Most Expensive
B
RockHer
1871b45b3 · Nov 7
HK$5,800 HKD
$740 USD
View
7 more retailers have this diamond
Prices start from HK$3,919 HKDSave up to HK$1,881 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$3,919 HKD