Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 2527616153

Certificate GIA 2527616153

Diamond specifications and retailer prices

From £2,278 GBP

$3,053 USD

As of October 28, 2026

Save £2,887 GBP (56%) vs most expensive(unlock to see where)

27 retailers carry this diamond

Most expensive: £5,165 GBP 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 £2,278 to £5,165, a £2,887 spread on the same certified stone. NZ Jewellers lists it at £5,165. 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: £5,165 GBP|Low: £2,002 GBP|High: £5,307 GBP|Avg: £3,010 GBP|-2.7%

NZ Jewellers

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Retailer 27

October 29, 2026

Retailer 7£2,278 GBP

Retailer 6£2,336 GBP

Retailer 2£2,337 GBP

Retailer 4£2,352 GBP

Retailer 10£2,384 GBP

Retailer 19£2,479 GBP

Retailer 12£2,671 GBP

Retailer 11£2,686 GBP

Retailer 25£2,686 GBP

Retailer 23£2,689 GBP

Retailer 18£2,692 GBP

Retailer 26£2,722 GBP

Retailer 27£2,789 GBP

Retailer 14£2,871 GBP

Retailer 21£2,901 GBP

Retailer 5£2,921 GBP

Retailer 16£2,933 GBP

Retailer 17£2,979 GBP

Retailer 22£3,014 GBP

Retailer 3£3,038 GBP

Retailer 15£3,038 GBP

Retailer 8£3,099 GBP

Retailer 9£3,142 GBP

Retailer 13£3,267 GBP

Retailer 20£4,284 GBP

Retailer 24£4,965 GBP

NZ Jewellers£5,165 GBP

30 data points across 27 retailers

27 retailers£2,278 GBP to £5,165 GBP

Cheapest Retailer

£2,278 GBP

$3,053 USD

Retailer 2

£2,336 GBP

$3,130 USD

View

Retailer 3

£2,337 GBP

$3,131 USD

View

Retailer 4

£2,352 GBP

$3,152 USD

View

Retailer 5

£2,384 GBP

$3,194 USD

View

Retailer 6

£2,671 GBP

$3,579 USD

View

Retailer 7

£2,686 GBP

$3,599 USD

View

Retailer 8

£2,686 GBP

$3,599 USD

View

Price last confirmed 8 days ago

Retailer 9

£2,689 GBP

$3,603 USD

View

Retailer 10

£2,692 GBP

CA$5,011 CAD

View

Retailer 11

£2,722 GBP

$3,647 USD

View

Price last confirmed 10 days ago

Retailer 12

£2,789 GBP

$3,737 USD

View

Price last confirmed 7 days ago

Retailer 13

£2,861 GBP

A$5,898 AUD

View

Retailer 14

£2,871 GBP

$3,847 USD

View

Retailer 15

£2,901 GBP

View

Retailer 16

£2,921 GBP

$3,914 USD

View

Price last confirmed 12 days ago

Retailer 17

£2,933 GBP

$3,930 USD

View

Retailer 18

£2,979 GBP

$3,991 USD

View

Retailer 19

£3,014 GBP

View

Retailer 20

£3,038 GBP

$4,070 USD

View

Retailer 21

£3,038 GBP

$4,070 USD

View

Retailer 22

£3,099 GBP

$4,152 USD

View

Retailer 23

£3,142 GBP

$4,210 USD

View

Retailer 24

£3,267 GBP

€4,169 EUR

View

B+

Retailer 25

£4,284 GBP

$5,740 USD

View

B+

Retailer 26

£4,965 GBP

View

Most Expensive

NZ Jewellers

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

£5,165 GBP

$6,921 USD

View

26 more retailers have this diamond

Prices start from £2,278 GBPSave up to £2,887 GBP

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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