Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

VG • E/SI1 • GIA 1559169538

Certificate GIA 1559169538

Diamond specifications and retailer prices

From $9,830 NZD

$5,540 USD

As of October 14, 2026

14 retailers carry this diamond

Most expensive: $22,484 NZD at NZ Jewellers · As of October 9, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559169538. Listed at 14 retailers as of October 9, 2026. 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

SymmetryVery Good

FluorescenceNone

Crown angle39.8°

Pavilion angle36.2°

OriginNatural

Grading LabGIA

CertificateGIA 1559169538

Dimensions8.69 × 6.48 × 4.07 mm

L/W Ratio1.34

Girdle conditionFaceted

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutVery Good

PolishExcellent

SymmetryVery Good

FluorescenceNone

CertificateGIA 1559169538

Side View

Caratlytics Score

No score right now

No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 14

Current: $13,512 NZD|Low: $9,830 NZD|High: $19,942 NZD|Avg: $13,119 NZD|+1.4%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

Retailer 16

October 16, 2026

Retailer 10$9,830 NZD

Retailer 16$9,970 NZD

Retailer 5$10,621 NZD

Retailer 3$10,811 NZD

Retailer 15$11,242 NZD

Retailer 11$11,285 NZD

Retailer 8$13,326 NZD

Retailer 1$13,512 NZD

Retailer 6$13,520 NZD

Retailer 13$13,520 NZD

Retailer 4$13,701 NZD

Retailer 7$13,964 NZD

Retailer 14$14,628 NZD

Retailer 2$14,948 NZD

Retailer 12$16,326 NZD

Retailer 9$18,935 NZD

27 data points across 16 retailers

14 retailers$9,830 NZD to $22,484 NZD

Retailer 1

$9,830 NZD

$5,540 USD

Price last confirmed 16 days ago

Retailer 2

$9,970 NZD

HK$43,900 HKD

View

Price last confirmed 16 days ago

Retailer 3

$10,621 NZD

$5,986 USD

View

Price last confirmed 18 days ago

Retailer 4

$10,811 NZD

$6,093 USD

View

Price last confirmed 15 days ago

Retailer 5

$11,242 NZD

$6,336 USD

View

Price last confirmed 18 days ago

Retailer 6

$12,179 NZD

$6,864 USD

View

Price last confirmed 23 days ago

Retailer 7

$12,583 NZD

$7,092 USD

View

Price last confirmed 31 days ago

Retailer 8

$13,326 NZD

A$11,555 AUD

View

Price last confirmed 26 days ago

Retailer 9

$13,512 NZD

£5,996 GBP

View

Price last confirmed 14 days ago

Retailer 10

$13,701 NZD

$7,722 USD

View

Price last confirmed 16 days ago

Retailer 11

$14,052 NZD

$7,920 USD

View

Price last confirmed 21 days ago

Retailer 12

$16,326 NZD

ZAR 148,646 ZAR

View

Price last confirmed 18 days ago

Retailer 13

$18,935 NZD

£8,403 GBP

View

Price last confirmed 15 days ago

Most Expensive

NZ Jewellers

40ddab6c-7117-4ba7-8e3c-2fc771f8aefa · Oct 9

$22,484 NZD

$12,672 USD

View

Price last confirmed 21 days ago

13 more retailers have this diamond

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

$9,830 NZD