Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 2527616153

Certificate GIA 2527616153

Diamond specifications and retailer prices

From $4,356 AUD

$3,053 USD

As of October 28, 2026

Save $5,519 AUD (56%) vs most expensive(unlock to see where)

27 retailers carry this diamond

Most expensive: $9,876 AUD at NZ Jewellers · As of October 27, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2527616153. Listed at 27 retailers as of October 27, 2026, with prices from $4,356 to $9,876, a $5,519 spread on the same certified stone. NZ Jewellers lists it at $9,876. 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

SI2

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle48.84°

Pavilion angle33.19°

OriginNatural

Grading LabGIA

CertificateGIA 2527616153

Dimensions7.11 × 5.67 × 4.00 mm

L/W Ratio1.25

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 2527616153

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 28

Current: $9,876 AUD|Low: $3,827 AUD|High: $10,147 AUD|Avg: $5,756 AUD|-2.7%

NZ Jewellers

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Retailer 27

October 29, 2026

Retailer 7$4,356 AUD

Retailer 6$4,466 AUD

Retailer 2$4,467 AUD

Retailer 4$4,498 AUD

Retailer 10$4,558 AUD

Retailer 19$4,740 AUD

Retailer 12$5,107 AUD

Retailer 11$5,135 AUD

Retailer 25$5,135 AUD

Retailer 23$5,141 AUD

Retailer 18$5,148 AUD

Retailer 26$5,204 AUD

Retailer 27$5,332 AUD

Retailer 14$5,489 AUD

Retailer 21$5,546 AUD

Retailer 5$5,585 AUD

Retailer 16$5,608 AUD

Retailer 17$5,695 AUD

Retailer 22$5,763 AUD

Retailer 3$5,807 AUD

Retailer 15$5,807 AUD

Retailer 8$5,924 AUD

Retailer 9$6,007 AUD

Retailer 13$6,246 AUD

Retailer 20$8,191 AUD

Retailer 24$9,492 AUD

NZ Jewellers$9,876 AUD

30 data points across 27 retailers

27 retailers$4,356 AUD to $9,876 AUD

Cheapest Retailer

$4,356 AUD

$3,053 USD

Retailer 2

$4,466 AUD

$3,130 USD

View

Retailer 3

$4,467 AUD

$3,131 USD

View

Retailer 4

$4,498 AUD

$3,152 USD

View

Retailer 5

$4,558 AUD

$3,194 USD

View

Retailer 6

$5,107 AUD

$3,579 USD

View

Retailer 7

$5,135 AUD

$3,599 USD

View

Price last confirmed 7 days ago

Retailer 8

$5,135 AUD

$3,599 USD

View

Price last confirmed 8 days ago

Retailer 9

$5,141 AUD

$3,603 USD

View

Price last confirmed 7 days ago

Retailer 10

$5,148 AUD

CA$5,011 CAD

View

Retailer 11

$5,204 AUD

$3,647 USD

View

Price last confirmed 10 days ago

Retailer 12

$5,332 AUD

$3,737 USD

View

Price last confirmed 8 days ago

Retailer 13

$5,470 AUD

View

Retailer 14

$5,489 AUD

$3,847 USD

View

Retailer 15

$5,546 AUD

£3,060 GBP

View

Retailer 16

$5,585 AUD

$3,914 USD

View

Price last confirmed 12 days ago

Retailer 17

$5,608 AUD

$3,930 USD

View

Retailer 18

$5,695 AUD

$3,991 USD

View

Retailer 19

$5,763 AUD

£3,180 GBP

View

Retailer 20

$5,807 AUD

$4,070 USD

View

Retailer 21

$5,807 AUD

$4,070 USD

View

Retailer 22

$5,924 AUD

$4,152 USD

View

Retailer 23

$6,007 AUD

$4,210 USD

View

Retailer 24

$6,246 AUD

€4,169 EUR

View

B+

Retailer 25

$8,191 AUD

$5,740 USD

View

Retailer 26

$9,492 AUD

£5,238 GBP

View

Price last confirmed 7 days ago

Most Expensive

NZ Jewellers

587b9d6c-140b-4667-b65b-2a937575911c · Oct 27

$9,876 AUD

$6,921 USD

View

26 more retailers have this diamond

Prices start from $4,356 AUDSave up to $5,519 AUD

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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