Oval|Natural|GIA

1.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 5231939776

Certificate GIA 5231939776

Diamond specifications and retailer prices

From $7,293 AUD

$5,123 USD

As of November 1, 2026

Save $9,047 AUD (55%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: $16,340 AUD at NZ Jewellers · As of October 30, 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 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 5231939776. Listed at 22 retailers as of October 30, 2026, with prices from $7,293 to $16,340, a $9,047 spread on the same certified stone. NZ Jewellers lists it at $16,340. 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

FluorescenceFaint

Pavilion angle36.75°

OriginNatural

Grading LabGIA

CertificateGIA 5231939776

Dimensions8.99 × 6.34 × 4.05 mm

L/W Ratio1.42

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceFaint

CertificateGIA 5231939776

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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

Price History

Last verified: Nov 1

Current: $16,340 AUD|Low: $5,922 AUD|High: $16,340 AUD|Avg: $8,961 AUD|+16.2%

NZ Jewellers

Retailer 2

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Retailer 21

November 2, 2026

Retailer 10$5,922 AUD

Retailer 12$7,280 AUD

Retailer 21$7,293 AUD

Retailer 8$7,490 AUD

Retailer 9$7,866 AUD

Retailer 5$8,075 AUD

Retailer 11$8,149 AUD

Retailer 19$8,170 AUD

Retailer 15$8,255 AUD

Retailer 14$8,277 AUD

Retailer 18$8,450 AUD

Retailer 16$9,101 AUD

Retailer 4$9,300 AUD

Retailer 17$9,426 AUD

Retailer 13$9,461 AUD

Retailer 3$9,951 AUD

Retailer 6$9,951 AUD

Retailer 2$10,179 AUD

Retailer 7$10,278 AUD

Retailer 20$14,413 AUD

NZ Jewellers$16,340 AUD

32 data points across 21 retailers

22 retailers$7,293 AUD to $16,340 AUD

Retailer 1

$5,922 AUD

HK$32,500 HKD

Price last confirmed 18 days ago

Retailer 2

$7,280 AUD

$5,114 USD

View

Price last confirmed 13 days ago

Retailer 3

$7,293 AUD

$5,123 USD

View

Retailer 4

$7,490 AUD

SGD 7,110 SGD

View

Price last confirmed 18 days ago

Retailer 5

$7,866 AUD

£4,351 GBP

View

Price last confirmed 18 days ago

Retailer 6

$8,075 AUD

$5,673 USD

View

Retailer 7

$8,149 AUD

$5,724 USD

View

Price last confirmed 26 days ago

B+

Retailer 8

$8,170 AUD

$5,739 USD

View

Final sale: no returns

Retailer 9

$8,255 AUD

CA$8,054 CAD

View

Retailer 10

$8,277 AUD

$5,814 USD

View

Price last confirmed 33 days ago

Retailer 11

$8,450 AUD

$5,936 USD

View

B+

Retailer 12

$9,101 AUD

$6,393 USD

View

B+

Retailer 13

$9,300 AUD

$6,533 USD

View

B+

Retailer 14

$9,426 AUD

$6,621 USD

View

B+

Retailer 15

$9,461 AUD

£5,233 GBP

View

B+

Retailer 16

$9,951 AUD

$6,990 USD

View

B+

Retailer 17

$9,951 AUD

$6,990 USD

View

B+

Retailer 18

$10,179 AUD

€6,810 EUR

View

B+

Retailer 19

$10,278 AUD

$7,220 USD

View

Retailer 20

$13,628 AUD

$9,573 USD

View

Price last confirmed 24 days ago

Retailer 21

$14,413 AUD

£7,972 GBP

View

Most Expensive

NZ Jewellers

ecc6dc5c-dc11-47c2-bc80-334fc94d5ca7 · Oct 30

$16,340 AUD

$11,478 USD

View

21 more retailers have this diamond

Prices start from $7,293 AUDSave up to $9,047 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

$7,293 AUD