Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 5553228913

Certificate GIA 5553228913

Diamond specifications and retailer prices

From $6,960 AUD

$4,878 USD

As of November 1, 2026

Save $5,158 AUD (43%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: $14,181 AUD at NZ Jewellers · As of September 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 F 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 5553228913. Listed at 20 retailers as of November 1, 2026, with a 74% 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

1.51

Carat

Colour

SI1

Clarity

Ideal

Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal

PolishExcellent

SymmetryExcellent

FluorescenceFaint

Crown angle37°

Pavilion angle43.22°

OriginNatural

Grading LabGIA

CertificateGIA 5553228913

Dimensions7.94 × 6.77 × 4.82 mm

L/W Ratio1.17

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceFaint

CertificateGIA 5553228913

Side View

Caratlytics Score

How it works →

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: $8,024 AUD|Low: $6,143 AUD|High: $12,642 AUD|Avg: $8,934 AUD|-0.9%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

November 3, 2026

Retailer 12$6,960 AUD

Retailer 11$7,174 AUD

Retailer 9$7,471 AUD

Retailer 2$7,593 AUD

Retailer 8$7,684 AUD

Retailer 1$8,024 AUD

Retailer 6$8,447 AUD

Retailer 4$8,479 AUD

Retailer 3$8,492 AUD

Retailer 5$8,986 AUD

Retailer 10$10,106 AUD

Retailer 7$12,118 AUD

43 data points across 12 retailers

20 retailers$6,960 AUD to $12,118 AUD

Cheapest Retailer

$6,960 AUD

$4,878 USD

Retailer 2

$7,174 AUD

$5,028 USD

View

Retailer 3

$7,471 AUD

$5,236 USD

View

B+

Retailer 4

$7,593 AUD

$5,321 USD

View

Final sale: no returns

B+

Retailer 5

$7,684 AUD

$5,385 USD

View

B+

Retailer 6

$8,024 AUD

£4,428 GBP

View

B+

Retailer 7

$8,447 AUD

$5,920 USD

View

Retailer 8

$8,479 AUD

$5,942 USD

View

Price last confirmed 33 days ago

Retailer 9

$8,479 AUD

$5,942 USD

View

Price last confirmed 32 days ago

Retailer 10

$8,479 AUD

$5,942 USD

View

Price last confirmed 49 days ago

Retailer 11

$8,479 AUD

$5,942 USD

View

Price last confirmed 18 days ago

Retailer 12

$8,492 AUD

View

Price last confirmed 24 days ago

B+

Retailer 13

$8,694 AUD

$6,093 USD

View

B+

Retailer 14

$8,986 AUD

€5,998 EUR

View

Retailer 15

$9,783 AUD

$6,856 USD

View

Price last confirmed 57 days ago

Retailer 16

$9,783 AUD

$6,856 USD

View

Price last confirmed 35 days ago

Retailer 17

$9,783 AUD

$6,856 USD

View

Price last confirmed 49 days ago

B+

Retailer 18

$10,106 AUD

ZAR 114,423 ZAR

View

Retailer 19

$12,118 AUD

£6,687 GBP

View

Most Expensive

NZ Jewellers

5c00d538-971f-4924-a6de-5e7610e26984 · Sep 30

$14,181 AUD

$9,938 USD

View

Price last confirmed 33 days ago

19 more retailers have this diamond

Prices start from $6,960 AUDSave up to $5,158 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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