Heart|Natural|GIA

0.64ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6535657775

Certificate GIA 6535657775

Diamond specifications and retailer prices

From $511 USD
₹48,631 INR
As of October 31, 2026
Save $1,623 USD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,134 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.64ct natural heart diamond

This 0.64ct natural heart sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6535657775. Listed at 18 retailers as of October 30, 2026, with prices from $511 to $2,134, a $1,623 spread on the same certified stone. NZ Jewellers lists it at $2,134. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.64
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6535657775
Dimensions5.17 × 6.09 × 3.50 mm
L/W Ratio1.18
Top View
5.17 mm6.09 mm0.64 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535657775
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.5%

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: Oct 31
Current: $2,134 USD|Low: $509 USD|High: $2,134 USD|Avg: $848 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 2$511 USD
Retailer 16$576 USD
Retailer 9$606 USD
Retailer 4$628 USD
Retailer 14$656 USD
Retailer 17$660 USD
Retailer 7$680 USD
Retailer 15$707 USD
Retailer 8$713 USD
Retailer 6$785 USD
Retailer 13$831 USD
Retailer 11$838 USD
Retailer 10$841 USD
Retailer 5$849 USD
Retailer 3$957 USD
Retailer 12$1,580 USD
NZ Jewellers$2,134 USD

22 data points across 17 retailers

18 retailers$511 USD to $2,134 USD

A
Cheapest Retailer
-
$511 USD
₹48,631 INR
A
Retailer 2
-
$576 USD
HK$4,500 HKD
View
A
Retailer 3
-
$606 USD
View
A
Retailer 4
-
$628 USD
View
Final sale: no returns
Retailer 5
-
$656 USD
€624 EUR
View
Price last confirmed 5 days ago
A
Retailer 6
-
$660 USD
SGD 892 SGD
View
A
Retailer 7
-
$680 USD
View
A
Retailer 8
-
$707 USD
View
A
Retailer 9
-
$713 USD
SGD 964 SGD
View
A
Retailer 10
-
$785 USD
View
A
Retailer 11
-
$831 USD
£654 GBP
View
B+
Retailer 12
-
$838 USD
£660 GBP
View
B+
Retailer 13
-
$841 USD
£662 GBP
View
B+
Retailer 14
-
$849 USD
View
B+
Retailer 15
-
$957 USD
View
Retailer 16
-
$968 USD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$1,580 USD
£1,244 GBP
View
Most Expensive
B
NZ Jewellers
c593a272-9d06-45be-94bd-0cb6913adfcf · Oct 30
$2,134 USD
View
17 more retailers have this diamond
Prices start from $511 USDSave up to $1,623 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
$511 USD