Radiant|Lab Grown|IGI

4.01ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG823669954

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG823669954

Diamond specifications and retailer prices

From £3,511 GBP

$4,676 USD

As of October 29, 2026

Save £9,425 GBP (73%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £12,936 GBP at Taylor and Hart · As of October 30, 2026

View at Taylor and Hart

About this 4.01ct lab-grown radiant diamond

This 4.01ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG823669954 or 823669954. Listed at 17 retailers as of October 29, 2026, with prices from £3,511 to £12,936, a £9,425 spread on the same certified stone. Taylor and Hart lists it at £12,936. 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

4.01

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle42.6°

Pavilion angle36.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG823669954

Dimensions11.22 × 7.88 × 5.36 mm

L/W Ratio1.42

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG823669954

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: Oct 29

Current: £4,786 GBP|Low: £3,511 GBP|High: £15,875 GBP|Avg: £7,169 GBP|-22.3%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Taylor and Hart

October 30, 2026

Retailer 11£3,511 GBP

Retailer 6£3,672 GBP

Retailer 8£4,259 GBP

Retailer 7£4,732 GBP

Retailer 1£4,786 GBP

Retailer 3£5,104 GBP

Retailer 5£5,604 GBP

Retailer 9£5,630 GBP

Retailer 2£6,788 GBP

Retailer 4£7,570 GBP

Retailer 10£10,103 GBP

Taylor and Hart£12,936 GBP

44 data points across 12 retailers

17 retailers£3,511 GBP to £12,936 GBP

Cheapest Retailer

£3,511 GBP

$4,676 USD

Final sale: no returns

Retailer 2

£3,672 GBP

$4,890 USD

View

Retailer 3

£3,790 GBP

$5,047 USD

View

Price last confirmed 22 days ago

Retailer 4

£3,972 GBP

$5,290 USD

View

Price last confirmed 16 days ago

Retailer 5

£4,259 GBP

$5,672 USD

View

Retailer 6

£4,397 GBP

$5,855 USD

View

Price last confirmed 27 days ago

Retailer 7

£4,397 GBP

$5,855 USD

View

Price last confirmed 17 days ago

Retailer 8

£4,732 GBP

$6,302 USD

View

Retailer 9

£4,786 GBP

View

Retailer 10

£5,104 GBP

View

Retailer 11

£5,219 GBP

$6,950 USD

View

Price last confirmed 25 days ago

B+

Retailer 12

£5,604 GBP

€7,108 EUR

View

Price last confirmed 7 days ago

B+

Retailer 13

£5,630 GBP

$7,497 USD

View

B+

Retailer 14

£6,788 GBP

$9,040 USD

View

B+

Retailer 15

£7,570 GBP

View

Retailer 16

£10,103 GBP

$13,454 USD

View

Most Expensive

Taylor and Hart

80VZCOZ · Oct 30

£12,936 GBP

$17,227 USD

View

16 more retailers have this diamond

Prices start from £3,511 GBPSave up to £9,425 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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