Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2316765230

Certificate GIA 2316765230

Diamond specifications and retailer prices

From $10,664 NZD

$6,000 USD

As of November 2, 2026

Save $13,340 NZD (56%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: $24,004 NZD at NZ Jewellers · As of November 2, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2316765230. Listed at 22 retailers as of November 2, 2026, with prices from $10,664 to $24,004, a $13,340 spread on the same certified stone. NZ Jewellers lists it at $24,004. 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

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 2316765230

Dimensions9.00 × 6.65 × 4.02 mm

L/W Ratio1.35

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 2316765230

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: Nov 2

Current: $24,004 NZD|Low: $10,664 NZD|High: $24,004 NZD|Avg: $15,116 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

November 3, 2026

Retailer 11$10,664 NZD

Retailer 9$11,458 NZD

Retailer 4$12,002 NZD

Retailer 3$13,003 NZD

Retailer 10$13,202 NZD

Retailer 2$13,404 NZD

Retailer 8$13,752 NZD

Retailer 12$15,002 NZD

Retailer 6$15,676 NZD

Retailer 7$17,631 NZD

Retailer 5$20,001 NZD

NZ Jewellers$24,004 NZD

44 data points across 12 retailers

22 retailers$10,664 NZD to $24,004 NZD

B+

Cheapest Retailer

$10,664 NZD

$6,000 USD

B+

Retailer 2

$11,122 NZD

$6,258 USD

View

B+

Retailer 3

$11,339 NZD

$6,380 USD

View

B+

Retailer 4

$11,458 NZD

$6,447 USD

View

Final sale: no returns

B+

Retailer 5

$11,504 NZD

$6,473 USD

View

B+

Retailer 6

$11,930 NZD

CA$9,323 CAD

View

B+

Retailer 7

$12,002 NZD

$6,753 USD

View

B+

Retailer 8

$12,023 NZD

$6,765 USD

View

B+

Retailer 9

$12,102 NZD

$6,809 USD

View

Retailer 10

$12,780 NZD

$7,190 USD

View

Retailer 11

$13,003 NZD

$7,316 USD

View

Retailer 12

$13,202 NZD

$7,428 USD

View

Retailer 13

$13,255 NZD

$7,458 USD

View

B+

Retailer 14

$13,404 NZD

£5,938 GBP

View

B+

Retailer 15

$13,730 NZD

$7,725 USD

View

Retailer 16

$13,752 NZD

A$11,904 AUD

View

Price last confirmed 12 days ago

Retailer 17

$15,002 NZD

$8,441 USD

View

Retailer 18

$15,676 NZD

€8,400 EUR

View

Retailer 19

$15,813 NZD

$8,897 USD

View

Retailer 20

$17,631 NZD

ZAR 160,262 ZAR

View

Retailer 21

$20,001 NZD

£8,861 GBP

View

Most Expensive

NZ Jewellers

7b5bc6cf-00be-4a75-8a6e-4a63f09f1019 · Nov 2

$24,004 NZD

$13,506 USD

View

21 more retailers have this diamond

Prices start from $10,664 NZDSave up to $13,340 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

$10,664 NZD