Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 6555458202

Certificate GIA 6555458202

Diamond specifications and retailer prices

From $7,941 AUD

$5,578 USD

As of October 28, 2026

Save $8,976 AUD (53%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: $16,917 AUD at NZ Jewellers · As of October 27, 2026

View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded I 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 6555458202. Listed at 19 retailers as of October 27, 2026, with prices from $7,941 to $16,917, a $8,976 spread on the same certified stone. NZ Jewellers lists it at $16,917. 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

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle38.3°

Pavilion angle36.4°

OriginNatural

Grading LabGIA

CertificateGIA 6555458202

Dimensions9.12 × 6.38 × 3.97 mm

L/W Ratio1.43

Culet sizeNone

Key to symbols

Twinning Wisp, Feather, Crystal, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 6555458202

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: Oct 28

Current: $16,917 AUD|Low: $8,378 AUD|High: $16,917 AUD|Avg: $10,879 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

October 29, 2026

Retailer 10$8,378 AUD

Retailer 9$8,482 AUD

Retailer 3$8,865 AUD

Retailer 4$9,336 AUD

Retailer 12$9,336 AUD

Retailer 2$9,670 AUD

Retailer 6$9,923 AUD

Retailer 8$10,115 AUD

Retailer 11$10,270 AUD

Retailer 5$10,523 AUD

Retailer 13$11,671 AUD

Retailer 7$14,981 AUD

NZ Jewellers$16,917 AUD

40 data points across 13 retailers

19 retailers$7,941 AUD to $16,917 AUD

B+

Cheapest Retailer

$7,941 AUD

$5,578 USD

Retailer 2

$8,378 AUD

$5,885 USD

View

Price last confirmed 14 days ago

B+

Retailer 3

$8,482 AUD

SGD 8,052 SGD

View

B+

Retailer 4

$8,821 AUD

$6,196 USD

View

B+

Retailer 5

$8,865 AUD

$6,227 USD

View

B+

Retailer 6

$9,336 AUD

$6,558 USD

View

Final sale: no returns

Retailer 7

$9,336 AUD

$6,558 USD

View

Price last confirmed 7 days ago

B+

Retailer 8

$9,670 AUD

£5,348 GBP

View

B+

Retailer 9

$9,923 AUD

£5,489 GBP

View

Retailer 10

$9,979 AUD

$7,010 USD

View

Retailer 11

$10,115 AUD

$7,105 USD

View

Price last confirmed 69 days ago

Retailer 12

$10,115 AUD

$7,105 USD

View

Retailer 13

$10,270 AUD

$7,214 USD

View

Price last confirmed 7 days ago

Retailer 14

$10,344 AUD

$7,266 USD

View

Price last confirmed 7 days ago

Retailer 15

$10,523 AUD

$7,392 USD

View

Retailer 16

$11,671 AUD

$8,198 USD

View

Retailer 17

$11,671 AUD

$8,198 USD

View

Price last confirmed 34 days ago

Retailer 18

$14,981 AUD

£8,286 GBP

View

Most Expensive

NZ Jewellers

1f934872-43fd-4ffb-8f38-2d02d3b5b9af · Oct 27

$16,917 AUD

$11,883 USD

View

18 more retailers have this diamond

Prices start from $7,941 AUDSave up to $8,976 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 Oval

$7,941 AUD