Round|Natural|GIA

1.51ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5241026924

Certificate GIA 5241026924

Diamond specifications and retailer prices

From $14,853 NZD

$8,357 USD

As of November 1, 2026

Save $12,388 NZD (45%) vs most expensive(unlock to see where)

21 retailers carry this diamond

Most expensive: $27,241 NZD at NZ Jewellers · As of November 2, 2026

View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5241026924. Listed at 21 retailers as of November 1, 2026, with prices from $14,853 to $27,241, a $12,388 spread on the same certified stone. NZ Jewellers lists it at $27,241. 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

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

Crown angle36°

Pavilion angle40.8°

OriginNatural

Grading LabGIA

CertificateGIA 5241026924

Dimensions7.28 × 7.32 × 4.56 mm

L/W Ratio1.01

Girdle conditionFaceted

Culet sizeNone

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

CertificateGIA 5241026924

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1

Current: $27,241 NZD|Low: $14,983 NZD|High: $27,241 NZD|Avg: $20,337 NZD

NZ Jewellers

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

November 3, 2026

Retailer 7$14,983 NZD

Retailer 8$15,718 NZD

Retailer 2$17,757 NZD

Retailer 6$17,971 NZD

Retailer 9$17,979 NZD

Retailer 10$18,185 NZD

Retailer 3$19,552 NZD

Retailer 5$24,011 NZD

Retailer 4$25,526 NZD

NZ Jewellers$27,241 NZD

43 data points across 10 retailers

21 retailers$14,853 NZD to $27,241 NZD

Cheapest Retailer

$14,853 NZD

$8,357 USD

Retailer 2

$14,983 NZD

$8,430 USD

View

B+

Retailer 3

$15,718 NZD

$8,844 USD

View

Final sale: no returns

B+

Retailer 4

$15,782 NZD

$8,880 USD

View

B+

Retailer 5

$15,842 NZD

CA$12,380 CAD

View

B+

Retailer 6

$17,705 NZD

$9,962 USD

View

B+

Retailer 7

$17,757 NZD

£7,867 GBP

View

Retailer 8

$17,971 NZD

A$15,556 AUD

View

Price last confirmed 10 days ago

B+

Retailer 9

$17,979 NZD

$10,116 USD

View

B+

Retailer 10

$18,185 NZD

$10,232 USD

View

Retailer 11

$18,834 NZD

$10,597 USD

View

B+

Retailer 12

$19,248 NZD

$10,830 USD

View

B+

Retailer 13

$19,248 NZD

$10,830 USD

View

B+

Retailer 14

$19,552 NZD

€10,477 EUR

View

B+

Retailer 15

$19,888 NZD

$11,190 USD

View

B+

Retailer 16

$20,430 NZD

$11,495 USD

View

Retailer 17

$20,913 NZD

$11,767 USD

View

Retailer 18

$21,511 NZD

$12,103 USD

View

Price last confirmed 11 days ago

Retailer 19

$24,011 NZD

ZAR 218,251 ZAR

View

Retailer 20

$25,526 NZD

£11,309 GBP

View

Most Expensive

NZ Jewellers

cbbe9cfe-acaf-44be-8157-92f430013637 · Nov 2

$27,241 NZD

$15,327 USD

View

20 more retailers have this diamond

Prices start from $14,853 NZDSave up to $12,388 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 Round

$14,853 NZD