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Heart|Natural|GIA

0.51ct G SI1 Heart Natural Diamond

GD • G/SI1 • GIA 6521419341

Certificate GIA 6521419341

Diamond specifications and retailer prices

From HK$3,221 HKD
As of November 6, 2026
Save HK$905 HKD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$4,127 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 G 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 6521419341. Listed at 4 retailers as of November 6, 2026, with prices from HK$3,221 to HK$4,127, a HK$905 spread on the same certified stone. 77 Diamonds lists it at HK$4,127. 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
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6521419341
Dimensions4.96 × 5.48 × 3.26 mm
L/W Ratio1.10
Top View
4.96 mm5.48 mm0.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6521419341
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.5%

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$4,127 HKD|Low: HK$3,064 HKD|High: HK$4,744 HKD|Avg: HK$3,724 HKD|-11.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2HK$3,221 HKD
Retailer 3HK$3,331 HKD
Retailer 4HK$3,613 HKD
77 DiamondsHK$4,127 HKD

41 data points across 4 retailers

4 retailersHK$3,221 HKD to HK$4,127 HKD

A
Cheapest Retailer
-
HK$3,221 HKD
A
Retailer 2
-
HK$3,331 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$3,613 HKD
View
Most Expensive
B+
77 Diamonds
HSCP44YWNYN7 · Nov 6
HK$4,127 HKD
£415 GBP
View
3 more retailers have this diamond
Prices start from HK$3,221 HKDSave up to HK$905 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$3,221 HKD