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Heart|Natural|GIA

0.51ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 6525804276

Certificate GIA 6525804276

Diamond specifications and retailer prices

From HK$4,107 HKD
As of November 1, 2026
Save HK$2,100 HKD (34%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$14,013 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 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 6525804276. Listed at 16 retailers as of October 31, 2026, with a 51% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6525804276
Dimensions4.76 × 5.49 × 3.34 mm
L/W Ratio1.15
Top View
4.76 mm5.49 mm0.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6525804276
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 61.0%

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 1
Current: HK$14,013 HKD|Low: HK$3,292 HKD|High: HK$14,013 HKD|Avg: HK$6,156 HKD
NZ Jewellers
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 1, 2026
Retailer 10HK$3,315 HKD
Retailer 2HK$4,107 HKD
Retailer 4HK$4,122 HKD
Retailer 5HK$4,467 HKD
Retailer 3HK$4,812 HKD
Retailer 14HK$4,812 HKD
Retailer 6HK$5,157 HKD
Retailer 8HK$5,478 HKD
Retailer 11HK$5,502 HKD
Retailer 12HK$5,596 HKD
Retailer 15HK$5,996 HKD
Retailer 7HK$6,717 HKD
Retailer 9HK$6,897 HKD
Retailer 13HK$10,330 HKD
NZ JewellersHK$14,013 HKD

29 data points across 15 retailers

16 retailersHK$4,107 HKD to HK$6,207 HKD

Retailer 1
-
HK$3,315 HKD
Price last confirmed 8 days ago
B+
Retailer 2
-
HK$4,107 HKD
View
Retailer 3
-
HK$4,467 HKD
View
Price last confirmed 9 days ago
Retailer 4
-
HK$4,812 HKD
View
Price last confirmed 9 days ago
Retailer 5
-
HK$4,812 HKD
View
Price last confirmed 9 days ago
B
Retailer 6
-
HK$5,157 HKD
View
Retailer 7
-
HK$5,157 HKD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
HK$5,478 HKD
View
Retailer 9
-
HK$5,502 HKD
View
Price last confirmed 8 days ago
Retailer 10
-
HK$5,596 HKD
View
Price last confirmed 8 days ago
Retailer 11
-
HK$5,996 HKD
View
Price last confirmed 5 days ago
B
Retailer 12
-
HK$6,207 HKD
View
Retailer 13
-
HK$6,717 HKD
View
Price last confirmed 34 days ago
Retailer 14
-
HK$6,897 HKD
View
Price last confirmed 8 days ago
Retailer 15
-
HK$10,330 HKD
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
83a05a61-9849-4b5b-bd93-f7104d6a2321 · Oct 30
HK$14,013 HKD
$1,788 USD
View
Price under review
15 more retailers have this diamond
Prices start from HK$4,107 HKDSave up to HK$2,100 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$4,107 HKD