CaratHunter
Plans
Heart|Natural|GIA

0.64ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 7536973112

Certificate GIA 7536973112

Diamond specifications and retailer prices

From HK$3,350 HKD
$427 USD
As of November 2, 2026
Save HK$1,028 HKD (23%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$4,378 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 0.64ct natural heart diamond

This 0.64ct natural heart sits in the half to three-quarter carat band, graded H 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 7536973112. Listed at 4 retailers as of October 31, 2026, with prices from HK$3,350 to HK$4,378, a HK$1,028 spread on the same certified stone. Blue Nile lists it at HK$4,378. 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

0.64
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7536973112
Dimensions5.42 × 6.02 × 3.41 mm
L/W Ratio1.11
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
5.42 mm6.02 mm0.64 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7536973112
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 56.7%

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 2
Current: HK$4,378 HKD|Low: HK$3,240 HKD|High: HK$5,288 HKD|Avg: HK$4,123 HKD|-17.2%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3HK$3,350 HKD
Retailer 4HK$3,652 HKD
Retailer 2HK$4,186 HKD
Blue NileHK$4,378 HKD

40 data points across 4 retailers

4 retailersHK$3,350 HKD to HK$4,378 HKD

A
Cheapest Retailer
-
HK$3,350 HKD
$427 USD
Final sale: no returns
A
Retailer 2
-
HK$3,652 HKD
SGD 629 SGD
View
B+
Retailer 3
-
HK$4,186 HKD
£420 GBP
View
Most Expensive
B+
Blue Nile
27208578 · Oct 31
HK$4,378 HKD
$558 USD
View
3 more retailers have this diamond
Prices start from HK$3,350 HKDSave up to HK$1,028 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
0.64ct Heart
HK$3,350 HKD