Heart|Natural|GIA

0.64ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6532692166

Certificate GIA 6532692166

Diamond specifications and retailer prices

From $1,537 NZD

$865 USD

As of November 2, 2026

Save $1,517 NZD (50%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: $5,231 NZD at NZ Jewellers · As of September 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 6532692166. Listed at 15 retailers as of November 1, 2026, with a 99% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

Colour

SI1

Clarity

Ideal

Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal

PolishExcellent

SymmetryExcellent

FluorescenceMedium

OriginNatural

Grading LabGIA

CertificateGIA 6532692166

Dimensions5.45 × 6.01 × 3.42 mm

L/W Ratio1.10

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceMedium

CertificateGIA 6532692166

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2

Current: $1,751 NZD|Low: $1,251 NZD|High: $3,092 NZD|Avg: $2,169 NZD|+6.6%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

November 2, 2026

Retailer 7$1,537 NZD

Retailer 4$1,671 NZD

Retailer 1$1,751 NZD

Retailer 9$1,868 NZD

Retailer 6$2,035 NZD

Retailer 3$2,348 NZD

Retailer 5$2,491 NZD

Retailer 8$2,508 NZD

Retailer 2$3,054 NZD

46 data points across 9 retailers

15 retailers$1,537 NZD to $3,054 NZD

B+

Cheapest Retailer

$1,537 NZD

$865 USD

Final sale: no returns

Retailer 2

$1,667 NZD

$938 USD

View

Price last confirmed 32 days ago

B+

Retailer 3

$1,671 NZD

$940 USD

View

B+

Retailer 4

$1,685 NZD

$948 USD

View

Retailer 5

$1,731 NZD

$974 USD

View

Price last confirmed 32 days ago

B+

Retailer 6

$1,751 NZD

£776 GBP

View

B+

Retailer 7

$1,868 NZD

$1,051 USD

View

Retailer 8

$1,925 NZD

$1,083 USD

View

Price last confirmed 34 days ago

B+

Retailer 9

$1,982 NZD

$1,115 USD

View

B+

Retailer 10

$2,035 NZD

£902 GBP

View

B+

Retailer 11

$2,348 NZD

€1,258 EUR

View

B+

Retailer 12

$2,491 NZD

ZAR 22,638 ZAR

View

Retailer 13

$2,508 NZD

A$2,171 AUD

View

Price last confirmed 29 days ago

Retailer 14

$3,054 NZD

£1,353 GBP

View

Most Expensive

NZ Jewellers

9248833f-a0d7-401a-98b0-a1383e5d2bcf · Sep 30

$5,231 NZD

$2,943 USD

View

Price last confirmed 33 days ago

14 more retailers have this diamond

Prices start from $1,537 NZDSave up to $1,517 NZD

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.

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B+

0.64ct Heart

$1,537 NZD