Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

VG • I/SI1 • GIA 5563429291

Certificate GIA 5563429291

Diamond specifications and retailer prices

From $9,048 NZD

$5,091 USD

As of November 2, 2026

Save $10,790 NZD (54%) vs most expensive(unlock to see where)

31 retailers carry this diamond

Most expensive: $19,838 NZD 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5563429291. Listed at 31 retailers as of October 30, 2026, with prices from $9,048 to $19,838, a $10,790 spread on the same certified stone. NZ Jewellers lists it at $19,838. 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

SymmetryExcellent

FluorescenceFaint

OriginNatural

Grading LabGIA

CertificateGIA 5563429291

Dimensions8.65 × 6.25 × 4.06 mm

L/W Ratio1.38

Culet sizeNone

Key to symbols

Feather, Crystal, Cavity, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutVery Good

PolishExcellent

SymmetryExcellent

FluorescenceFaint

CertificateGIA 5563429291

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: $19,838 NZD|Low: $9,048 NZD|High: $19,838 NZD|Avg: $11,676 NZD

NZ Jewellers

Retailer 2

Retailer 3

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Retailer 5

Retailer 6

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Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

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Retailer 18

Retailer 19

Retailer 20

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Retailer 24

Retailer 25

Retailer 26

Retailer 27

Retailer 28

Retailer 29

Retailer 30

November 2, 2026

Retailer 9$9,048 NZD

Retailer 11$9,267 NZD

Retailer 16$9,372 NZD

Retailer 6$9,378 NZD

Retailer 15$9,495 NZD

Retailer 10$9,919 NZD

Retailer 3$10,015 NZD

Retailer 29$10,305 NZD

Retailer 14$10,546 NZD

Retailer 28$10,597 NZD

Retailer 5$10,746 NZD

Retailer 8$10,746 NZD

Retailer 30$10,746 NZD

Retailer 7$10,863 NZD

Retailer 4$10,941 NZD

Retailer 22$11,202 NZD

Retailer 17$11,212 NZD

Retailer 2$11,255 NZD

Retailer 25$11,377 NZD

Retailer 19$11,764 NZD

Retailer 12$11,979 NZD

Retailer 21$11,979 NZD

Retailer 18$12,144 NZD

Retailer 13$12,238 NZD

Retailer 20$12,370 NZD

Retailer 27$12,400 NZD

Retailer 26$14,574 NZD

Retailer 23$17,193 NZD

Retailer 24$17,475 NZD

NZ Jewellers$19,838 NZD

8 data points across 30 retailers

31 retailers$9,048 NZD to $19,838 NZD

Cheapest Retailer

$9,048 NZD

$5,091 USD

B+

Retailer 2

$9,267 NZD

$5,214 USD

View

B+

Retailer 3

$9,372 NZD

$5,273 USD

View

B+

Retailer 4

$9,378 NZD

$5,276 USD

View

B+

Retailer 5

$9,495 NZD

$5,343 USD

View

B+

Retailer 6

$9,743 NZD

A$8,434 AUD

View

B+

Retailer 7

$9,777 NZD

$5,501 USD

View

B+

Retailer 8

$9,919 NZD

$5,581 USD

View

Final sale: no returns

B+

Retailer 9

$10,015 NZD

$5,635 USD

View

B+

Retailer 10

$10,305 NZD

CA$8,053 CAD

View

B+

Retailer 11

$10,546 NZD

$5,934 USD

View

B+

Retailer 12

$10,597 NZD

$5,963 USD

View

B+

Retailer 13

$10,746 NZD

$6,046 USD

View

B+

Retailer 14

$10,746 NZD

$6,046 USD

View

B+

Retailer 15

$10,746 NZD

$6,046 USD

View

B+

Retailer 16

$10,941 NZD

$6,156 USD

View

B+

Retailer 17

$11,202 NZD

$6,303 USD

View

B+

Retailer 18

$11,212 NZD

$6,308 USD

View

B+

Retailer 19

$11,255 NZD

£4,986 GBP

View

B+

Retailer 20

$11,377 NZD

£5,040 GBP

View

Retailer 21

$11,764 NZD

$6,619 USD

View

Retailer 22

$11,979 NZD

$6,740 USD

View

Retailer 23

$11,979 NZD

$6,740 USD

View

Retailer 24

$12,144 NZD

$6,833 USD

View

Retailer 25

$12,238 NZD

€6,558 EUR

View

Retailer 26

$12,370 NZD

$6,960 USD

View

Retailer 27

$12,400 NZD

$6,977 USD

View

Retailer 28

$14,574 NZD

ZAR 132,471 ZAR

View

Retailer 29

$17,193 NZD

$9,674 USD

View

Retailer 30

$17,475 NZD

£7,742 GBP

View

Most Expensive

NZ Jewellers

7dfffc9e-415c-4cce-b8dd-c391752c098f · Oct 30

$19,838 NZD

$11,162 USD

View

30 more retailers have this diamond

Prices start from $9,048 NZDSave up to $10,790 NZD

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

$9,048 NZD