Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

VG • E/SI1 • GIA 1559169538

Certificate GIA 1559169538

Diamond specifications and retailer prices

From $9,019 AUD

$6,336 USD

As of October 27, 2026

15 retailers carry this diamond

Most expensive: $18,037 AUD at NZ Jewellers · As of October 9, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559169538. Listed at 15 retailers as of October 27, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51

Carat

Colour

SI1

Clarity

Very Good

Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good

PolishExcellent

SymmetryVery Good

FluorescenceNone

Crown angle39.8°

Pavilion angle36.2°

OriginNatural

Grading LabGIA

CertificateGIA 1559169538

Dimensions8.69 × 6.48 × 4.07 mm

L/W Ratio1.34

Girdle conditionFaceted

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutVery Good

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 1559169538

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27

Current: $10,840 AUD|Low: $7,886 AUD|High: $15,998 AUD|Avg: $10,525 AUD|+1.4%

Retailer 1

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

October 16, 2026

Retailer 10$7,886 AUD

Retailer 16$7,998 AUD

Retailer 5$8,520 AUD

Retailer 3$8,673 AUD

Retailer 15$9,019 AUD

Retailer 11$9,053 AUD

Retailer 8$10,691 AUD

Retailer 1$10,840 AUD

Retailer 6$10,846 AUD

Retailer 13$10,846 AUD

Retailer 4$10,991 AUD

Retailer 7$11,202 AUD

Retailer 14$11,735 AUD

Retailer 2$11,992 AUD

Retailer 12$13,097 AUD

Retailer 9$15,190 AUD

27 data points across 16 retailers

15 retailers

Retailer 1

$7,886 AUD

$5,540 USD

Price last confirmed 15 days ago

Retailer 2

$7,998 AUD

HK$43,900 HKD

View

Price last confirmed 15 days ago

Retailer 3

$8,520 AUD

$5,986 USD

View

Price last confirmed 18 days ago

Retailer 4

$8,673 AUD

$6,093 USD

View

Price last confirmed 14 days ago

B+

Retailer 5

$9,019 AUD

$6,336 USD

View

Final sale: no returns

Retailer 6

$9,019 AUD

$6,336 USD

View

Price last confirmed 18 days ago

Retailer 7

$9,770 AUD

$6,864 USD

View

Price last confirmed 23 days ago

Retailer 8

$10,095 AUD

$7,092 USD

View

Price last confirmed 30 days ago

Retailer 9

$10,691 AUD

View

Price last confirmed 26 days ago

Retailer 10

$10,840 AUD

£5,996 GBP

View

Price last confirmed 14 days ago

Retailer 11

$10,991 AUD

$7,722 USD

View

Price last confirmed 16 days ago

Retailer 12

$11,273 AUD

$7,920 USD

View

Price last confirmed 21 days ago

Retailer 13

$13,097 AUD

ZAR 148,646 ZAR

View

Price last confirmed 17 days ago

Retailer 14

$15,190 AUD

£8,403 GBP

View

Price last confirmed 15 days ago

Most Expensive

NZ Jewellers

40ddab6c-7117-4ba7-8e3c-2fc771f8aefa · Oct 9

$18,037 AUD

$12,672 USD

View

Price last confirmed 21 days ago

14 more retailers have this diamond

Prices start from $9,019 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 Oval

$9,019 AUD