Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 6535513328

Certificate GIA 6535513328

Diamond specifications and retailer prices

From $5,426 NZD

$3,053 USD

As of October 31, 2026

Save $6,875 NZD (56%) vs most expensive(unlock to see where)

28 retailers carry this diamond

Most expensive: $12,301 NZD at NZ Jewellers · As of October 30, 2026

View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded J 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 6535513328. Listed at 28 retailers as of October 30, 2026, with prices from $5,426 to $12,301, a $6,875 spread on the same certified stone. NZ Jewellers lists it at $12,301. 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

SymmetryExcellent

FluorescenceNone

Crown angle44.83°

Pavilion angle30.94°

OriginNatural

Grading LabGIA

CertificateGIA 6535513328

Dimensions7.22 × 5.66 × 3.94 mm

L/W Ratio1.28

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 6535513328

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: Oct 31

Current: $12,301 NZD|Low: $4,767 NZD|High: $12,301 NZD|Avg: $7,301 NZD

NZ Jewellers

Retailer 2

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Retailer 26

November 2, 2026

Retailer 12$5,426 NZD

Retailer 8$5,563 NZD

Retailer 2$5,564 NZD

Retailer 11$5,602 NZD

Retailer 7$5,677 NZD

Retailer 10$5,904 NZD

Retailer 24$6,149 NZD

Retailer 6$6,397 NZD

Retailer 14$6,397 NZD

Retailer 9$6,403 NZD

Retailer 16$6,482 NZD

Retailer 23$6,642 NZD

Retailer 25$6,956 NZD

Retailer 15$6,985 NZD

Retailer 20$7,222 NZD

Retailer 5$7,234 NZD

Retailer 26$7,234 NZD

Retailer 4$7,379 NZD

Retailer 3$7,482 NZD

Retailer 17$7,557 NZD

Retailer 19$7,779 NZD

Retailer 13$7,782 NZD

Retailer 22$8,678 NZD

Retailer 18$10,202 NZD

Retailer 21$11,807 NZD

NZ Jewellers$12,301 NZD

33 data points across 26 retailers

28 retailers$5,426 NZD to $12,301 NZD

Cheapest Retailer

$5,426 NZD

$3,053 USD

Retailer 2

$5,563 NZD

$3,130 USD

View

Retailer 3

$5,564 NZD

$3,131 USD

View

Retailer 4

$5,602 NZD

$3,152 USD

View

Retailer 5

$5,677 NZD

$3,194 USD

View

Retailer 6

$5,904 NZD

$3,322 USD

View

Final sale: no returns

Retailer 7

$6,149 NZD

$3,460 USD

View

Retailer 8

$6,397 NZD

$3,599 USD

View

Retailer 9

$6,397 NZD

$3,599 USD

View

Retailer 10

$6,403 NZD

$3,603 USD

View

Retailer 11

$6,482 NZD

$3,647 USD

View

Price last confirmed 10 days ago

Retailer 12

$6,642 NZD

$3,737 USD

View

B+

Retailer 13

$6,956 NZD

$3,914 USD

View

B+

Retailer 14

$6,985 NZD

$3,930 USD

View

B+

Retailer 15

$7,172 NZD

A$6,208 AUD

View

B+

Retailer 16

$7,222 NZD

£3,200 GBP

View

B+

Retailer 17

$7,234 NZD

$4,070 USD

View

B+

Retailer 18

$7,234 NZD

$4,070 USD

View

B+

Retailer 19

$7,379 NZD

$4,152 USD

View

B+

Retailer 20

$7,482 NZD

$4,210 USD

View

B+

Retailer 21

$7,557 NZD

$4,252 USD

View

Retailer 22

$7,779 NZD

A$6,733 AUD

View

Price last confirmed 29 days ago

B+

Retailer 23

$7,782 NZD

€4,170 EUR

View

Retailer 24

$7,991 NZD

$4,496 USD

View

Price last confirmed 56 days ago

B+

Retailer 25

$8,678 NZD

ZAR 78,880 ZAR

View

Retailer 26

$10,202 NZD

$5,740 USD

View

Retailer 27

$11,807 NZD

£5,231 GBP

View

Most Expensive

NZ Jewellers

ab8e341f-9ded-4f5f-a81b-1fa39f0abccc · Oct 30

$12,301 NZD

$6,921 USD

View

27 more retailers have this diamond

Prices start from $5,426 NZDSave up to $6,875 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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