Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

ID • H/SI1 • GIA 2564549385

Certificate GIA 2564549385

Diamond specifications and retailer prices

From $9,603 AUD

ZAR 108,979 ZAR

As of October 27, 2026

18 retailers carry this diamond

Most expensive: $14,180 AUD at NZ Jewellers · As of October 23, 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 H 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 2564549385. Listed at 18 retailers as of October 27, 2026. 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

FluorescenceMedium

OriginNatural

Grading LabGIA

CertificateGIA 2564549385

Dimensions9.22 × 6.19 × 3.94 mm

L/W Ratio1.49

Girdle conditionFaceted

Culet sizeNone

Key to symbols

Crystal, Twinning Wisp, Feather, Indented Natural, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceMedium

CertificateGIA 2564549385

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 27

Current: $14,180 AUD|Low: $6,518 AUD|High: $14,518 AUD|Avg: $8,795 AUD|-2.3%

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

Retailer 14

Retailer 15

Retailer 16

Retailer 17

Retailer 18

Retailer 19

Retailer 20

October 27, 2026

Retailer 4$6,518 AUD

Retailer 12$6,960 AUD

Retailer 13$6,961 AUD

Retailer 20$7,117 AUD

Retailer 6$7,124 AUD

Retailer 8$7,196 AUD

Retailer 14$7,279 AUD

Retailer 18$7,440 AUD

Retailer 15$7,555 AUD

Retailer 17$7,887 AUD

Retailer 19$7,999 AUD

Retailer 16$8,095 AUD

Retailer 3$8,277 AUD

Retailer 10$8,647 AUD

Retailer 11$8,680 AUD

Retailer 9$9,218 AUD

Retailer 2$9,603 AUD

Retailer 7$9,783 AUD

Retailer 5$12,211 AUD

NZ Jewellers$14,180 AUD

18 data points across 20 retailers

18 retailers

Retailer 1

$6,518 AUD

₹436,039 INR

Price last confirmed 8 days ago

Retailer 2

$6,960 AUD

$4,889 USD

View

Price last confirmed 10 days ago

Retailer 3

$6,961 AUD

$4,890 USD

View

Price last confirmed 6 days ago

Retailer 4

$7,117 AUD

$4,999 USD

View

Price last confirmed 7 days ago

Retailer 5

$7,124 AUD

$5,004 USD

View

Price last confirmed 12 days ago

Retailer 6

$7,196 AUD

$5,055 USD

View

Price last confirmed 14 days ago

Retailer 7

$7,440 AUD

£4,115 GBP

View

Price last confirmed 7 days ago

Retailer 8

$7,555 AUD

$5,307 USD

View

Price last confirmed 7 days ago

Retailer 9

$7,887 AUD

$5,540 USD

View

Price last confirmed 7 days ago

Retailer 10

$7,999 AUD

£4,424 GBP

View

Price last confirmed 7 days ago

Retailer 11

$8,095 AUD

$5,687 USD

View

Price last confirmed 7 days ago

Retailer 12

$8,277 AUD

$5,814 USD

View

Price last confirmed 8 days ago

Retailer 13

$8,647 AUD

$6,074 USD

View

Price last confirmed 11 days ago

Retailer 14

$8,680 AUD

$6,097 USD

View

Price last confirmed 21 days ago

B+

Retailer 15

$9,603 AUD

ZAR 108,979 ZAR

View

Retailer 16

$9,783 AUD

$6,872 USD

View

Price last confirmed 10 days ago

Retailer 17

$12,211 AUD

£6,754 GBP

View

Price last confirmed 8 days ago

Most Expensive

NZ Jewellers

ace2581e-8a07-45ff-91b5-c8d968fc0dbf · Oct 23

$14,180 AUD

$9,961 USD

View

Price last confirmed 9 days ago

17 more retailers have this diamond

Prices start from $9,603 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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