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Heart|Natural|GIA

0.51ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 1523399760

Certificate GIA 1523399760

Diamond specifications and retailer prices

From HK$2,782 HKD
As of November 6, 2026
Save HK$950 HKD (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$3,733 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1523399760. Listed at 4 retailers as of November 6, 2026, with prices from HK$2,782 to HK$3,733, a HK$950 spread on the same certified stone. 77 Diamonds lists it at HK$3,733. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1523399760
Dimensions5.11 × 5.61 × 3.15 mm
L/W Ratio1.10
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
5.11 mm5.61 mm0.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1523399760
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 56.3%

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$3,733 HKD|Low: HK$2,500 HKD|High: HK$4,240 HKD|Avg: HK$3,327 HKD|-0.5%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2HK$2,782 HKD
Retailer 4HK$2,978 HKD
Retailer 3HK$3,715 HKD
77 DiamondsHK$3,733 HKD

41 data points across 4 retailers

4 retailersHK$2,782 HKD to HK$3,733 HKD

A
Cheapest Retailer
-
HK$2,782 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,978 HKD
View
B+
Retailer 3
-
HK$3,715 HKD
View
Most Expensive
B+
77 Diamonds
HSCPYNZKXMED · Nov 6
HK$3,733 HKD
£375 GBP
View
3 more retailers have this diamond
Prices start from HK$2,782 HKDSave up to HK$950 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$2,782 HKD