Heart|Natural|GIA

1.50ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6545064208

Certificate GIA 6545064208

Diamond specifications and retailer prices

From $5,369 AUD

$3,763 USD

As of November 1, 2026

Save $2,553 AUD (32%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: $10,335 AUD at MOH London · As of October 11, 2026

View at MOH London

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545064208. Listed at 15 retailers as of November 1, 2026, with a 48% 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

1.50

Carat

Colour

SI1

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryExcellent

FluorescenceFaint

Crown angle32.98°

OriginNatural

Grading LabGIA

CertificateGIA 6545064208

Dimensions7.92 × 6.11 × 4.27 mm

L/W Ratio1.30

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceFaint

CertificateGIA 6545064208

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: $10,335 AUD|Low: $4,769 AUD|High: $11,355 AUD|Avg: $6,460 AUD|-8.9%

MOH London

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

Retailer 18

Retailer 19

November 2, 2026

Retailer 8$4,867 AUD

Retailer 6$5,105 AUD

Retailer 11$5,242 AUD

Retailer 7$5,287 AUD

Retailer 15$5,369 AUD

Retailer 5$5,523 AUD

Retailer 12$5,742 AUD

Retailer 13$5,878 AUD

Retailer 19$5,937 AUD

Retailer 17$6,079 AUD

Retailer 9$6,513 AUD

Retailer 3$6,880 AUD

Retailer 10$6,908 AUD

Retailer 14$7,006 AUD

Retailer 16$7,006 AUD

Retailer 18$7,234 AUD

Retailer 4$7,416 AUD

Retailer 2$7,923 AUD

MOH London$10,335 AUD

40 data points across 19 retailers

15 retailers$5,369 AUD to $7,923 AUD

Retailer 1

$4,867 AUD

$3,411 USD

Price last confirmed 18 days ago

Retailer 2

$5,242 AUD

$3,674 USD

View

Price last confirmed 25 days ago

B+

Retailer 3

$5,369 AUD

$3,763 USD

View

Retailer 4

$5,523 AUD

$3,871 USD

View

Price last confirmed 19 days ago

B+

Retailer 5

$5,742 AUD

$4,024 USD

View

B+

Retailer 6

$5,878 AUD

CA$5,722 CAD

View

B+

Retailer 7

$6,079 AUD

$4,260 USD

View

Retailer 8

$6,513 AUD

View

Price last confirmed 23 days ago

Retailer 9

$6,908 AUD

$4,841 USD

View

Price last confirmed 20 days ago

Retailer 10

$7,006 AUD

$4,910 USD

View

Retailer 11

$7,006 AUD

$4,910 USD

View

Retailer 12

$7,234 AUD

$5,070 USD

View

Retailer 13

$7,416 AUD

ZAR 83,957 ZAR

View

Price last confirmed 21 days ago

Retailer 14

$7,923 AUD

£4,372 GBP

View

Most Expensive

MOH London

F8B778ACD · Oct 11

$10,335 AUD

£5,703 GBP

View

Price last confirmed 22 days ago

14 more retailers have this diamond

Prices start from $5,369 AUDSave up to $2,553 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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