Radiant|Natural|GIA

1.51ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 1226247495

Certificate GIA 1226247495

Diamond specifications and retailer prices

From $12,860 NZD

$7,248 USD

As of October 31, 2026

Save $16,159 NZD (56%) vs most expensive(unlock to see where)

30 retailers carry this diamond

Most expensive: $29,019 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 D 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 1226247495. Listed at 30 retailers as of October 30, 2026, with prices from $12,860 to $29,019, a $16,159 spread on the same certified stone. NZ Jewellers lists it at $29,019. 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

SymmetryExcellent

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 1226247495

Dimensions7.16 × 5.60 × 3.90 mm

L/W Ratio1.28

Culet sizeNone

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutVery Good

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 1226247495

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: $16,204 NZD|Low: $12,860 NZD|High: $24,472 NZD|Avg: $17,012 NZD|+0.7%

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

November 2, 2026

Retailer 14$12,860 NZD

Retailer 11$13,352 NZD

Retailer 12$13,919 NZD

Retailer 4$14,508 NZD

Retailer 2$14,629 NZD

Retailer 13$15,960 NZD

Retailer 10$16,031 NZD

Retailer 1$16,204 NZD

Retailer 6$17,586 NZD

Retailer 5$18,566 NZD

Retailer 9$18,958 NZD

Retailer 3$19,099 NZD

Retailer 8$21,315 NZD

Retailer 7$24,179 NZD

45 data points across 14 retailers

30 retailers$12,860 NZD to $29,019 NZD

Cheapest Retailer

$12,860 NZD

$7,248 USD

Retailer 2

$13,352 NZD

$7,525 USD

View

Price last confirmed 14 days ago

B+

Retailer 3

$13,501 NZD

$7,609 USD

View

B+

Retailer 4

$13,554 NZD

A$11,752 AUD

View

B+

Retailer 5

$13,586 NZD

$7,657 USD

View

B+

Retailer 6

$13,919 NZD

$7,845 USD

View

Final sale: no returns

B+

Retailer 7

$13,975 NZD

$7,876 USD

View

B+

Retailer 8

$14,260 NZD

CA$11,162 CAD

View

B+

Retailer 9

$14,434 NZD

$8,135 USD

View

B+

Retailer 10

$14,508 NZD

$8,177 USD

View

B+

Retailer 11

$14,629 NZD

$8,245 USD

View

B+

Retailer 12

$15,463 NZD

$8,715 USD

View

B+

Retailer 13

$15,719 NZD

$8,859 USD

View

B+

Retailer 14

$15,960 NZD

$8,995 USD

View

Retailer 15

$16,031 NZD

A$13,900 AUD

View

Price last confirmed 9 days ago

B+

Retailer 16

$16,102 NZD

$9,075 USD

View

B+

Retailer 17

$16,204 NZD

£7,191 GBP

View

Retailer 18

$16,678 NZD

$9,400 USD

View

Retailer 19

$17,193 NZD

$9,690 USD

View

Retailer 20

$17,193 NZD

$9,690 USD

View

B+

Retailer 21

$17,586 NZD

$9,912 USD

View

B+

Retailer 22

$17,761 NZD

$10,010 USD

View

Retailer 23

$18,137 NZD

$10,222 USD

View

Retailer 24

$18,518 NZD

$10,437 USD

View

Retailer 25

$18,566 NZD

A$16,098 AUD

View

Retailer 26

$18,958 NZD

€10,176 EUR

View

Retailer 27

$19,099 NZD

$10,764 USD

View

Price last confirmed 10 days ago

Retailer 28

$21,315 NZD

ZAR 194,074 ZAR

View

Retailer 29

$24,179 NZD

£10,730 GBP

View

Most Expensive

NZ Jewellers

dc34e41b-1b78-429d-a20b-acb2e110d87c · Oct 30

$29,019 NZD

$16,355 USD

View

29 more retailers have this diamond

Prices start from $12,860 NZDSave up to $16,159 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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