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Heart|Natural|GIA

0.51ct H SI2 Heart Natural Diamond

GD • H/SI2 • GIA 5556256128

Certificate GIA 5556256128

Diamond specifications and retailer prices

From HK$2,876 HKD
As of November 5, 2026
Save HK$724 HKD (20%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$3,600 HKD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5556256128. Listed at 2 retailers as of November 5, 2026, with prices from HK$2,876 to HK$3,600, a HK$724 spread on the same certified stone. 77 Diamonds lists it at HK$3,600. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5556256128
Dimensions5.10 × 5.67 × 3.15 mm
L/W Ratio1.11
Top View
5.10 mm5.67 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5556256128
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 55.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$3,600 HKD|Low: HK$2,876 HKD|High: HK$3,705 HKD|Avg: HK$3,297 HKD|+2.5%
77 Diamonds
Retailer 2
November 6, 2026
Retailer 2HK$2,876 HKD
77 DiamondsHK$3,600 HKD

41 data points across 2 retailers

2 retailersHK$2,876 HKD to HK$3,600 HKD

A
Cheapest Retailer
-
HK$2,876 HKD
Most Expensive
B+
77 Diamonds
HSCPJ8DZABKF · Nov 6
HK$3,600 HKD
£362 GBP
View
1 more retailer has this diamond
Prices start from HK$2,876 HKDSave up to HK$724 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$2,876 HKD