Heart|Natural|GIA

1.64ct D SI2 Heart Natural Diamond

VG • D/SI2 • GIA 6515713856

Certificate GIA 6515713856

Diamond specifications and retailer prices

From $4,703 USD
As of October 29, 2026
Save $4,477 USD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,407 USD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 1.64ct natural heart diamond

This 1.64ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6515713856. Listed at 14 retailers as of October 26, 2026, with a 95% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.64
Carat
D
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6515713856
Dimensions8.10 × 6.94 × 4.89 mm
L/W Ratio1.17
Top View
8.10 mm6.94 mm1.64 ctD / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515713856
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $10,407 USD|Low: $4,336 USD|High: $10,407 USD|Avg: $6,391 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 27, 2026
Retailer 15$4,703 USD
Retailer 3$4,773 USD
Retailer 4$4,908 USD
Retailer 16$5,203 USD
Retailer 5$5,637 USD
Retailer 12$5,637 USD
Retailer 13$5,637 USD
Retailer 10$5,938 USD
Retailer 17$5,950 USD
Retailer 7$6,350 USD
Retailer 8$6,350 USD
Retailer 6$6,560 USD
Retailer 2$6,567 USD
Retailer 11$6,762 USD
Retailer 9$7,814 USD
Retailer 14$9,180 USD
NZ Jewellers$10,407 USD

31 data points across 17 retailers

14 retailers$4,703 USD to $9,180 USD

A
Cheapest Retailer
-
$4,703 USD
A
Retailer 2
-
$4,773 USD
View
A
Retailer 3
-
$4,908 USD
View
A
Retailer 4
-
$5,637 USD
View
A
Retailer 5
-
$5,637 USD
View
B+
Retailer 6
-
$5,938 USD
£4,676 GBP
View
B+
Retailer 7
-
$5,950 USD
View
B+
Retailer 8
-
$6,350 USD
View
B+
Retailer 9
-
$6,350 USD
View
B+
Retailer 10
-
$6,560 USD
View
B+
Retailer 11
-
$6,567 USD
View
B+
Retailer 12
-
$6,762 USD
€6,440 EUR
View
B+
Retailer 13
-
$9,180 USD
£7,228 GBP
View
Most Expensive
NZ Jewellers
51753480-c4a3-4b05-8d7d-e40f78589f03 · Oct 24
$10,407 USD
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from $4,703 USDSave up to $4,477 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
1.64ct Heart
$4,703 USD