Heart|Natural|GIA

0.64ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 6532708411

Certificate GIA 6532708411

Diamond specifications and retailer prices

From $409 USD
As of November 2, 2026
Save $128 USD (24%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $537 USD 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 6532708411. Listed at 4 retailers as of October 31, 2026, with prices from $409 to $537, a $128 spread on the same certified stone. Blue Nile lists it at $537. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6532708411
Dimensions5.24 × 6.12 × 3.47 mm
L/W Ratio1.17
Top View
5.24 mm6.12 mm0.64 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6532708411
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 56.6%

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 2
Current: $537 USD|Low: $393 USD|High: $650 USD|Avg: $503 USD|-17.4%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3$409 USD
Retailer 4$445 USD
Retailer 2$510 USD
Blue Nile$537 USD

40 data points across 4 retailers

4 retailers$409 USD to $537 USD

A
Cheapest Retailer
-
$409 USD
Final sale: no returns
A
Retailer 2
-
$445 USD
SGD 602 SGD
View
B+
Retailer 3
-
$510 USD
£402 GBP
View
Most Expensive
B+
Blue Nile
26938277 · Oct 31
$537 USD
View
3 more retailers have this diamond
Prices start from $409 USDSave up to $128 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
$409 USD