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Heart|Natural|GIA

0.64ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6535657775

Certificate GIA 6535657775

Diamond specifications and retailer prices

From $727 AUD
₹48,621 INR
As of November 1, 2026
Save $2,311 AUD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,038 AUD 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 $727 to $3,038, a $2,311 spread on the same certified stone. NZ Jewellers lists it at $3,038. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,038 AUD|Low: $725 AUD|High: $3,038 AUD|Avg: $1,219 AUD
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
November 1, 2026
Retailer 2$727 AUD
Retailer 16$820 AUD
Retailer 9$863 AUD
Retailer 4$894 AUD
Retailer 14$933 AUD
Retailer 17$940 AUD
Retailer 7$968 AUD
Retailer 15$1,006 AUD
Retailer 8$1,016 AUD
Retailer 6$1,118 AUD
Retailer 13$1,182 AUD
Retailer 10$1,189 AUD
Retailer 12$1,207 AUD
Retailer 5$1,209 AUD
Retailer 3$1,363 AUD
Retailer 11$2,236 AUD
NZ Jewellers$3,038 AUD

23 data points across 17 retailers

18 retailers$727 AUD to $3,038 AUD

A
Cheapest Retailer
-
$727 AUD
₹48,621 INR
A
Retailer 2
-
$820 AUD
HK$4,500 HKD
View
A
Retailer 3
-
$863 AUD
$606 USD
View
A
Retailer 4
-
$894 AUD
$628 USD
View
Final sale: no returns
Retailer 5
-
$933 AUD
€624 EUR
View
Price last confirmed 6 days ago
A
Retailer 6
-
$940 AUD
SGD 892 SGD
View
A
Retailer 7
-
$968 AUD
$680 USD
View
A
Retailer 8
-
$1,006 AUD
$707 USD
View
A
Retailer 9
-
$1,016 AUD
SGD 964 SGD
View
A
Retailer 10
-
$1,118 AUD
$785 USD
View
A
Retailer 11
-
$1,182 AUD
£654 GBP
View
B+
Retailer 12
-
$1,189 AUD
£658 GBP
View
B+
Retailer 13
-
$1,207 AUD
£668 GBP
View
B+
Retailer 14
-
$1,209 AUD
$849 USD
View
B+
Retailer 15
-
$1,363 AUD
$957 USD
View
Retailer 16
-
$1,378 AUD
$968 USD
View
Price last confirmed 15 days ago
B
Retailer 17
-
$2,236 AUD
£1,237 GBP
View
Most Expensive
B
NZ Jewellers
c593a272-9d06-45be-94bd-0cb6913adfcf · Oct 30
$3,038 AUD
$2,134 USD
View
17 more retailers have this diamond
Prices start from $727 AUDSave up to $2,311 AUD

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
$727 AUD