Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 5241011851

Certificate GIA 5241011851

Diamond specifications and retailer prices

From £5,180 GBP

$6,952 USD

As of October 26, 2026

7 retailers carry this diamond

Most expensive: £8,812 GBP at MOH London · As of October 26, 2026

View at MOH London

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5241011851. Listed at 7 retailers as of October 26, 2026. 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

Ideal

Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal

PolishExcellent

SymmetryExcellent

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 5241011851

Dimensions7.35 × 5.64 × 3.93 mm

L/W Ratio1.30

Girdle conditionPolished

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 5241011851

Side View

Caratlytics Score

No score right now

No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 26

Current: £8,812 GBP|Low: £4,257 GBP|High: £8,812 GBP|Avg: £5,621 GBP

MOH London

Retailer 2

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Retailer 21

October 26, 2026

Retailer 10£4,257 GBP

Retailer 9£4,350 GBP

Retailer 7£4,545 GBP

Retailer 6£4,614 GBP

Retailer 11£4,750 GBP

Retailer 8£4,799 GBP

Retailer 5£4,967 GBP

Retailer 15£5,180 GBP

Retailer 21£5,266 GBP

Retailer 3£5,476 GBP

Retailer 12£5,768 GBP

Retailer 20£5,898 GBP

Retailer 2£5,965 GBP

Retailer 4£6,108 GBP

Retailer 17£6,364 GBP

Retailer 18£6,364 GBP

Retailer 16£6,442 GBP

Retailer 19£6,573 GBP

Retailer 13£6,577 GBP

Retailer 14£7,081 GBP

MOH London£8,812 GBP

4 data points across 21 retailers

7 retailers£5,180 GBP to £8,812 GBP

Retailer 1

£5,180 GBP

$6,952 USD

Price last confirmed 7 days ago

Retailer 2

£5,965 GBP

View

Price last confirmed 7 days ago

Retailer 3

£6,364 GBP

$8,540 USD

View

Price last confirmed 7 days ago

Retailer 4

£6,364 GBP

$8,540 USD

View

Price last confirmed 7 days ago

Retailer 5

£6,442 GBP

$8,644 USD

View

Price last confirmed 10 days ago

Retailer 6

£6,573 GBP

$8,820 USD

View

Price last confirmed 7 days ago

Most Expensive

MOH London

778FEAE61 · Oct 26

£8,812 GBP

View

Price last confirmed 7 days ago

6 more retailers have this diamond

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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