Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 6555458202

Certificate GIA 6555458202

Diamond specifications and retailer prices

From $9,914 NZD

$5,578 USD

As of October 28, 2026

Save $11,206 NZD (53%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: $21,120 NZD 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 $9,914 to $21,120, a $11,206 spread on the same certified stone. NZ Jewellers lists it at $21,120. 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: $21,120 NZD|Low: $10,459 NZD|High: $21,120 NZD|Avg: $13,582 NZD

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$10,459 NZD

Retailer 9$10,590 NZD

Retailer 3$11,067 NZD

Retailer 4$11,656 NZD

Retailer 12$11,656 NZD

Retailer 2$12,072 NZD

Retailer 6$12,389 NZD

Retailer 8$12,628 NZD

Retailer 11$12,821 NZD

Retailer 5$13,138 NZD

Retailer 13$14,570 NZD

Retailer 7$18,703 NZD

NZ Jewellers$21,120 NZD

40 data points across 13 retailers

19 retailers$9,914 NZD to $21,120 NZD

B+

Cheapest Retailer

$9,914 NZD

$5,578 USD

Retailer 2

$10,459 NZD

$5,885 USD

View

Price last confirmed 14 days ago

B+

Retailer 3

$10,590 NZD

SGD 8,052 SGD

View

B+

Retailer 4

$11,012 NZD

$6,196 USD

View

B+

Retailer 5

$11,067 NZD

$6,227 USD

View

B+

Retailer 6

$11,656 NZD

$6,558 USD

View

Final sale: no returns

Retailer 7

$11,656 NZD

$6,558 USD

View

Price last confirmed 8 days ago

B+

Retailer 8

$12,072 NZD

£5,348 GBP

View

B+

Retailer 9

$12,389 NZD

£5,489 GBP

View

Retailer 10

$12,459 NZD

$7,010 USD

View

Retailer 11

$12,628 NZD

$7,105 USD

View

Price last confirmed 69 days ago

Retailer 12

$12,628 NZD

$7,105 USD

View

Retailer 13

$12,821 NZD

$7,214 USD

View

Price last confirmed 8 days ago

Retailer 14

$12,914 NZD

$7,266 USD

View

Price last confirmed 8 days ago

Retailer 15

$13,138 NZD

$7,392 USD

View

Retailer 16

$14,570 NZD

$8,198 USD

View

Retailer 17

$14,570 NZD

$8,198 USD

View

Price last confirmed 34 days ago

Retailer 18

$18,703 NZD

£8,286 GBP

View

Most Expensive

NZ Jewellers

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

$21,120 NZD

$11,883 USD

View

18 more retailers have this diamond

Prices start from $9,914 NZDSave up to $11,206 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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B+

1.51ct Oval

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