Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 7426492341

Certificate GIA 7426492341

Diamond specifications and retailer prices

From $4,874 AUD

₹325,328 INR

As of November 2, 2026

Save $5,357 AUD (52%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $11,191 AUD at NZ Jewellers · As of September 25, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7426492341. Listed at 16 retailers as of November 1, 2026, with a 110% 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

SI2

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishVery Good

SymmetryVery Good

FluorescenceFaint

OriginNatural

Grading LabGIA

CertificateGIA 7426492341

Dimensions7.46 × 7.99 × 4.29 mm

L/W Ratio1.07

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishVery Good

SymmetryVery Good

FluorescenceFaint

CertificateGIA 7426492341

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 2

Current: $4,874 AUD|Low: $4,864 AUD|High: $10,355 AUD|Avg: $6,503 AUD|-1.0%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

November 2, 2026

Retailer 1$4,874 AUD

Retailer 6$5,485 AUD

Retailer 7$5,602 AUD

Retailer 5$5,927 AUD

Retailer 8$6,299 AUD

Retailer 3$6,572 AUD

Retailer 2$7,266 AUD

Retailer 4$10,231 AUD

40 data points across 8 retailers

16 retailers$4,874 AUD to $10,231 AUD

Cheapest Retailer

$4,874 AUD

₹325,328 INR

Retailer 2

$5,324 AUD

View

Retailer 3

$5,485 AUD

$3,844 USD

View

Retailer 4

$5,602 AUD

$3,926 USD

View

B+

Retailer 5

$5,927 AUD

$4,154 USD

View

Final sale: no returns

Retailer 6

$6,424 AUD

$4,502 USD

View

Price last confirmed 37 days ago

Retailer 7

$6,424 AUD

$4,502 USD

View

Price last confirmed 32 days ago

Retailer 8

$6,424 AUD

$4,502 USD

View

Price last confirmed 25 days ago

Retailer 9

$6,424 AUD

$4,502 USD

View

Price last confirmed 17 days ago

Retailer 10

$6,572 AUD

£3,626 GBP

View

B+

Retailer 11

$7,266 AUD

€4,850 EUR

View

Retailer 12

$7,411 AUD

$5,194 USD

View

Price last confirmed 39 days ago

Retailer 13

$7,411 AUD

$5,194 USD

View

Price last confirmed 24 days ago

B+

Retailer 14

$10,231 AUD

£5,646 GBP

View

Retailer 15

$11,191 AUD

$7,843 USD

View

Price last confirmed 34 days ago

Most Expensive

NZ Jewellers

f607889e-0a75-4f1f-8e4a-9a7864b97e54 · Sep 25

$11,191 AUD

$7,843 USD

View

Price last confirmed 38 days ago

15 more retailers have this diamond

Prices start from $4,874 AUDSave up to $5,357 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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1.51ct Heart

$4,874 AUD