Radiant|Lab Grown|IGI

15.56ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG617483569

Shape and cutting style on the report: Cut cornered rectangular mixed cut

Certificate IGI LG617483569

Diamond specifications and retailer prices

From £2,124 GBP

$2,846 USD

As of November 2, 2026

Save £6,461 GBP (75%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £8,585 GBP at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 15.56ct lab-grown radiant diamond

This 15.56ct lab-grown radiant sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG617483569 or 617483569. Listed at 16 retailers as of October 31, 2026, with prices from £2,124 to £8,585, a £6,461 spread on the same certified stone. Taylor and Hart lists it at £8,585. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

15.56

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.8°

Pavilion angle36.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG617483569

Dimensions16.35 × 11.36 × 7.63 mm

L/W Ratio1.44

Culet sizeLong

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG617483569

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

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

Price History

Last verified: Nov 2

Current: £4,565 GBP|Low: £2,039 GBP|High: £17,270 GBP|Avg: £4,880 GBP|-0.2%

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

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Retailer 16

Retailer 17

Taylor and Hart

November 1, 2026

Retailer 17£2,124 GBP

Retailer 15£2,311 GBP

Retailer 4£2,378 GBP

Retailer 6£2,464 GBP

Retailer 12£2,464 GBP

Retailer 16£2,467 GBP

Retailer 7£2,890 GBP

Retailer 2£3,232 GBP

Retailer 13£3,387 GBP

Retailer 11£3,815 GBP

Retailer 3£3,832 GBP

Retailer 9£3,855 GBP

Retailer 10£3,911 GBP

Retailer 1£4,565 GBP

Retailer 5£6,858 GBP

Retailer 14£8,430 GBP

Taylor and Hart£8,585 GBP

Retailer 8£17,270 GBP

33 data points across 18 retailers

16 retailers£2,124 GBP to £8,585 GBP

Cheapest Retailer

£2,124 GBP

$2,846 USD

Retailer 2

£2,311 GBP

$3,097 USD

View

Retailer 3

£2,378 GBP

$3,186 USD

View

Final sale: no returns

Retailer 4

£2,464 GBP

$3,301 USD

View

Retailer 5

£2,464 GBP

$3,301 USD

View

Price last confirmed 20 days ago

Retailer 6

£2,467 GBP

$3,305 USD

View

B+

Retailer 7

£2,890 GBP

$3,872 USD

View

B+

Retailer 8

£3,232 GBP

$4,330 USD

View

B+

Retailer 9

£3,387 GBP

$4,538 USD

View

B+

Retailer 10

£3,815 GBP

ZAR 82,569 ZAR

View

B+

Retailer 11

£3,832 GBP

$5,135 USD

View

B+

Retailer 12

£3,911 GBP

€4,991 EUR

View

B+

Retailer 13

£4,565 GBP

A$9,410 AUD

View

Retailer 14

£6,858 GBP

$9,189 USD

View

Retailer 15

£8,430 GBP

$11,295 USD

View

Most Expensive

Taylor and Hart

L7V1QYQ · Oct 31

£8,585 GBP

$11,504 USD

View

15 more retailers have this diamond

Prices start from £2,124 GBPSave up to £6,461 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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15.56ct Radiant

£2,124 GBP