Radiant|Natural|GIA

1.70ct H SI1 Radiant Natural Diamond

VG • H/SI1 • GIA 1559517675

Certificate GIA 1559517675

Diamond specifications and retailer prices

From £5,476 GBP

A$11,288 AUD

As of November 2, 2026

12 retailers carry this diamond

Most expensive: £9,974 GBP at NZ Jewellers · As of September 30, 2026

View at NZ Jewellers

About this 1.7ct natural radiant diamond

This 1.7ct natural radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559517675. Listed at 12 retailers as of November 2, 2026. 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

1.70

Carat

Colour

SI1

Clarity

Very Good

Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good

PolishExcellent

SymmetryExcellent

FluorescenceStrong

OriginNatural

Grading LabGIA

CertificateGIA 1559517675

Dimensions7.71 × 6.11 × 4.19 mm

L/W Ratio1.26

Culet sizeNone

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutVery Good

PolishExcellent

SymmetryExcellent

FluorescenceStrong

CertificateGIA 1559517675

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2

Current: £6,490 GBP|Low: £4,326 GBP|High: £8,411 GBP|Avg: £5,643 GBP|-0.8%

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

October 10, 2026

Retailer 9£4,571 GBP

Retailer 4£4,621 GBP

Retailer 5£4,688 GBP

Retailer 12£4,712 GBP

Retailer 6£4,889 GBP

Retailer 2£4,997 GBP

Retailer 3£5,114 GBP

Retailer 13£5,476 GBP

Retailer 7£5,666 GBP

Retailer 10£5,772 GBP

Retailer 1£6,490 GBP

Retailer 14£6,569 GBP

Retailer 11£7,190 GBP

Retailer 8£8,389 GBP

22 data points across 14 retailers

12 retailers

Retailer 1

£4,712 GBP

$6,313 USD

Price last confirmed 26 days ago

Retailer 2

£4,889 GBP

$6,551 USD

View

Price last confirmed 18 days ago

Retailer 3

£4,987 GBP

$6,682 USD

View

Price last confirmed 25 days ago

Retailer 4

£5,403 GBP

$7,239 USD

View

Price last confirmed 25 days ago

B+

Retailer 5

£5,476 GBP

A$11,288 AUD

View

Retailer 6

£5,486 GBP

$7,350 USD

View

Price last confirmed 32 days ago

Retailer 7

£5,772 GBP

A$11,899 AUD

View

Price last confirmed 29 days ago

Retailer 8

£6,234 GBP

$8,353 USD

View

Price last confirmed 24 days ago

Retailer 9

£6,569 GBP

$8,802 USD

View

Price last confirmed 24 days ago

Retailer 10

£7,190 GBP

ZAR 155,637 ZAR

View

Price last confirmed 32 days ago

Retailer 11

£8,389 GBP

View

Price last confirmed 25 days ago

Most Expensive

NZ Jewellers

1a0c54cc-1ee1-43b1-ad80-1907cb8bf80d · Sep 30

£9,974 GBP

$13,364 USD

View

Price last confirmed 33 days ago

11 more retailers have this diamond

Prices start from £5,476 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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