Oval|Natural|GIA

1.51ct F SI2 Oval Natural Diamond

EX • F/SI2 • GIA 6522365391

Certificate GIA 6522365391

Diamond specifications and retailer prices

From $10,616 NZD

$5,973 USD

As of November 1, 2026

Save $11,855 NZD (53%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $22,470 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6522365391. Listed at 16 retailers as of October 30, 2026, with prices from $10,616 to $22,470, a $11,855 spread on the same certified stone. NZ Jewellers lists it at $22,470. 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

FluorescenceMedium

Crown angle38.74°

Pavilion angle39.76°

OriginNatural

Grading LabGIA

CertificateGIA 6522365391

Dimensions9.38 × 6.32 × 3.85 mm

L/W Ratio1.48

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

CertificateGIA 6522365391

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 1

Current: $22,470 NZD|Low: $10,616 NZD|High: $22,470 NZD|Avg: $14,033 NZD

NZ Jewellers

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

November 2, 2026

Retailer 9$10,616 NZD

Retailer 8$11,236 NZD

Retailer 6$12,171 NZD

Retailer 11$12,359 NZD

Retailer 4$12,668 NZD

Retailer 10$12,813 NZD

Retailer 3$13,300 NZD

Retailer 7$14,044 NZD

Retailer 2$14,677 NZD

Retailer 5$18,723 NZD

NZ Jewellers$22,470 NZD

44 data points across 11 retailers

16 retailers$10,616 NZD to $22,470 NZD

Cheapest Retailer

$10,616 NZD

$5,973 USD

Retailer 2

$11,236 NZD

$6,322 USD

View

B+

Retailer 3

$11,329 NZD

$6,374 USD

View

B+

Retailer 4

$12,171 NZD

$6,848 USD

View

B+

Retailer 5

$12,359 NZD

$6,954 USD

View

B+

Retailer 6

$12,668 NZD

£5,612 GBP

View

B+

Retailer 7

$13,300 NZD

$7,483 USD

View

Retailer 8

$14,044 NZD

$7,902 USD

View

Price last confirmed 62 days ago

B+

Retailer 9

$14,044 NZD

$7,902 USD

View

B+

Retailer 10

$14,218 NZD

$8,000 USD

View

B+

Retailer 11

$14,218 NZD

$8,000 USD

View

B+

Retailer 12

$14,677 NZD

€7,865 EUR

View

Retailer 13

$14,698 NZD

$8,270 USD

View

Retailer 14

$18,723 NZD

£8,295 GBP

View

Retailer 15

$22,470 NZD

$12,643 USD

View

Price last confirmed 64 days ago

Most Expensive

NZ Jewellers

eb984eed-b178-4d39-863e-7afc21aeca99 · Oct 30

$22,470 NZD

$12,643 USD

View

15 more retailers have this diamond

Prices start from $10,616 NZDSave up to $11,855 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

$10,616 NZD