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Heart|Natural|GIA

0.51ct I SI2 Heart Natural Diamond

GD • I/SI2 • GIA 7566242820

Certificate GIA 7566242820

Diamond specifications and retailer prices

From HK$3,164 HKD
SGD 545 SGD
As of November 1, 2026
Save HK$512 HKD (14%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$3,676 HKD at 77 Diamonds · As of November 2, 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 I 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 7566242820. Listed at 2 retailers as of November 1, 2026, with prices from HK$3,164 to HK$3,676, a HK$512 spread on the same certified stone. 77 Diamonds lists it at HK$3,676. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7566242820
Dimensions5.12 × 5.53 × 3.00 mm
L/W Ratio1.08
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
5.12 mm5.53 mm0.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7566242820
Side View
Table 56.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 54.3%

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$3,676 HKD|Low: HK$3,164 HKD|High: HK$3,794 HKD|Avg: HK$3,605 HKD|-0.3%
77 Diamonds
Retailer 2
November 2, 2026
Retailer 2HK$3,164 HKD
77 DiamondsHK$3,676 HKD

32 data points across 2 retailers

2 retailersHK$3,164 HKD to HK$3,676 HKD

B+
Cheapest Retailer
-
HK$3,164 HKD
SGD 545 SGD
Most Expensive
B+
77 Diamonds
HSCPSM8HMXF4 · Nov 2
HK$3,676 HKD
£369 GBP
View
1 more retailer has this diamond
Prices start from HK$3,164 HKDSave up to HK$512 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$3,164 HKD