Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6471026814

Certificate GIA 6471026814

Diamond specifications and retailer prices

From $8,302 AUD

$5,832 USD

As of November 1, 2026

Save $9,273 AUD (53%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: $17,576 AUD at NZ Jewellers · As of October 30, 2026

View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two 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 6471026814. Listed at 18 retailers as of October 30, 2026, with prices from $8,302 to $17,576, a $9,273 spread on the same certified stone. NZ Jewellers lists it at $17,576. 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

1.51

Carat

Colour

SI1

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishVery Good

SymmetryGood

FluorescenceStrong

OriginNatural

Grading LabGIA

CertificateGIA 6471026814

Dimensions7.44 × 7.56 × 3.74 mm

L/W Ratio1.02

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishVery Good

SymmetryGood

FluorescenceStrong

CertificateGIA 6471026814

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 1

Current: $17,576 AUD|Low: $8,302 AUD|High: $17,576 AUD|Avg: $11,158 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

November 2, 2026

Retailer 4$8,302 AUD

Retailer 10$8,788 AUD

Retailer 12$9,521 AUD

Retailer 11$9,666 AUD

Retailer 3$9,683 AUD

Retailer 2$9,832 AUD

Retailer 7$9,909 AUD

Retailer 5$10,306 AUD

Retailer 13$10,984 AUD

Retailer 6$11,480 AUD

Retailer 9$12,912 AUD

Retailer 8$14,645 AUD

NZ Jewellers$17,576 AUD

43 data points across 13 retailers

18 retailers$8,302 AUD to $17,576 AUD

B+

Cheapest Retailer

$8,302 AUD

$5,832 USD

B+

Retailer 2

$8,391 AUD

$5,894 USD

View

B+

Retailer 3

$8,788 AUD

$6,173 USD

View

Retailer 4

$8,788 AUD

$6,173 USD

View

Price last confirmed 21 days ago

B+

Retailer 5

$8,833 AUD

$6,205 USD

View

B+

Retailer 6

$9,521 AUD

$6,688 USD

View

B+

Retailer 7

$9,666 AUD

$6,790 USD

View

B+

Retailer 8

$9,683 AUD

$6,802 USD

View

B+

Retailer 9

$9,832 AUD

£5,438 GBP

View

B+

Retailer 10

$9,909 AUD

£5,481 GBP

View

Retailer 11

$10,306 AUD

View

Price last confirmed 29 days ago

Retailer 12

$10,984 AUD

$7,716 USD

View

Retailer 13

$10,984 AUD

$7,716 USD

View

Price last confirmed 24 days ago

B+

Retailer 14

$11,480 AUD

€7,680 EUR

View

Retailer 15

$11,581 AUD

$8,135 USD

View

Price last confirmed 20 days ago

Retailer 16

$12,912 AUD

ZAR 146,521 ZAR

View

Retailer 17

$14,645 AUD

£8,100 GBP

View

Most Expensive

NZ Jewellers

75af5fb7-0f00-4687-9234-f981cbecc60e · Oct 30

$17,576 AUD

$12,346 USD

View

17 more retailers have this diamond

Prices start from $8,302 AUDSave up to $9,273 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.

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B+

1.51ct Heart

$8,302 AUD