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Heart|Natural|GIA

0.51ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 6532618685

Certificate GIA 6532618685

Diamond specifications and retailer prices

From HK$3,535 HKD
As of November 6, 2026
Save HK$1,089 HKD (24%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$4,624 HKD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532618685. Listed at 5 retailers as of November 6, 2026, with prices from HK$3,535 to HK$4,624, a HK$1,089 spread on the same certified stone. Brilliant Earth lists it at HK$4,624. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6532618685
Dimensions5.68 × 4.83 × 3.36 mm
L/W Ratio1.18
Top View
5.68 mm4.83 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532618685
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.2%

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$4,624 HKD|Low: HK$3,276 HKD|High: HK$5,173 HKD|Avg: HK$4,163 HKD|-10.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 3HK$3,535 HKD
Retailer 4HK$3,637 HKD
Retailer 5HK$3,958 HKD
Retailer 2HK$4,522 HKD
Brilliant EarthHK$4,624 HKD

42 data points across 5 retailers

5 retailersHK$3,535 HKD to HK$4,624 HKD

A
Cheapest Retailer
-
HK$3,535 HKD
A
Retailer 2
-
HK$3,637 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$3,958 HKD
View
B+
Retailer 4
-
HK$4,522 HKD
View
Most Expensive
B+
Brilliant Earth
16020128A · Nov 6
HK$4,624 HKD
$590 USD
View
4 more retailers have this diamond
Prices start from HK$3,535 HKDSave up to HK$1,089 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$3,535 HKD