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Heart|Natural|GIA

0.64ct H SI2 Heart Natural Diamond

GD • H/SI2 • GIA 6555056145

Certificate GIA 6555056145

Diamond specifications and retailer prices

From $396 USD
As of November 6, 2026
Save $108 USD (21%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $504 USD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6555056145. Listed at 4 retailers as of November 6, 2026, with prices from $396 to $504, a $108 spread on the same certified stone. 77 Diamonds lists it at $504. 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
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555056145
Dimensions5.45 × 6.01 × 3.42 mm
L/W Ratio1.10
Top View
5.45 mm6.01 mm0.64 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555056145
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.0%

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 6
Current: $504 USD|Low: $385 USD|High: $579 USD|Avg: $459 USD|-11.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$396 USD
Retailer 4$408 USD
Retailer 3$440 USD
77 Diamonds$504 USD

41 data points across 4 retailers

4 retailers$396 USD to $504 USD

A
Cheapest Retailer
-
$396 USD
A
Retailer 2
-
$408 USD
View
Final sale: no returns
B+
Retailer 3
-
$440 USD
View
Most Expensive
B+
77 Diamonds
HSCPS7ECESWA · Nov 6
$504 USD
£396 GBP
View
3 more retailers have this diamond
Prices start from $396 USDSave up to $108 USD

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
$396 USD