Radiant|Lab Grown|IGI

4.03ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG643426765

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

Certificate IGI LG643426765

Diamond specifications and retailer prices

From £818 GBP

$1,098 USD

As of November 2, 2026

Save £4,674 GBP (85%) vs most expensive(unlock to see where)

32 retailers carry this diamond

Most expensive: £5,492 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 4.03ct lab-grown radiant diamond

This 4.03ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG643426765 or 643426765. Listed at 32 retailers as of October 31, 2026, with prices from £818 to £5,492, a £4,674 spread on the same certified stone. Brilliant Earth lists it at £5,492. 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

4.03

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle42.6°

Pavilion angle35.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG643426765

Dimensions11.49 × 7.83 × 5.12 mm

L/W Ratio1.47

Culet sizePointed

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG643426765

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: £5,492 GBP|Low: £818 GBP|High: £5,492 GBP|Avg: £2,020 GBP

Brilliant Earth

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

Retailer 15

Retailer 16

Retailer 17

Retailer 18

November 2, 2026

Retailer 3£818 GBP

Retailer 6£1,039 GBP

Retailer 15£1,081 GBP

Retailer 8£1,170 GBP

Retailer 9£1,294 GBP

Retailer 11£1,376 GBP

Retailer 4£1,427 GBP

Retailer 2£1,515 GBP

Retailer 14£2,021 GBP

Retailer 13£2,034 GBP

Retailer 16£2,187 GBP

Retailer 18£2,318 GBP

Retailer 17£2,445 GBP

Retailer 10£2,623 GBP

Retailer 5£2,748 GBP

Retailer 12£3,220 GBP

Retailer 7£3,342 GBP

Brilliant Earth£5,492 GBP

42 data points across 18 retailers

32 retailers£818 GBP to £5,492 GBP

Retailer 1

£818 GBP

$1,098 USD

Price last confirmed 33 days ago

Retailer 2

£818 GBP

$1,098 USD

View

Retailer 3

£818 GBP

$1,098 USD

View

Price last confirmed 25 days ago

Retailer 4

£891 GBP

$1,195 USD

View

Price last confirmed 35 days ago

Retailer 5

£936 GBP

$1,256 USD

View

Price last confirmed 36 days ago

Retailer 6

£949 GBP

$1,274 USD

View

Price last confirmed 30 days ago

Retailer 7

£1,039 GBP

$1,394 USD

View

Final sale: no returns

Retailer 8

£1,081 GBP

$1,450 USD

View

Retailer 9

£1,154 GBP

HK$12,100 HKD

View

Retailer 10

£1,170 GBP

$1,570 USD

View

B+

Retailer 11

£1,294 GBP

$1,736 USD

View

B+

Retailer 12

£1,376 GBP

View

B+

Retailer 13

£1,427 GBP

$1,915 USD

View

B+

Retailer 14

£1,515 GBP

€1,936 EUR

View

Retailer 15

£1,780 GBP

$2,388 USD

View

Price last confirmed 22 days ago

B+

Retailer 16

£1,780 GBP

$2,388 USD

View

Retailer 17

£1,780 GBP

$2,388 USD

View

Price last confirmed 32 days ago

B+

Retailer 18

£1,926 GBP

$2,584 USD

View

B+

Retailer 19

£2,021 GBP

ZAR 43,805 ZAR

View

Retailer 20

£2,034 GBP

A$4,199 AUD

View

Retailer 21

£2,187 GBP

$2,935 USD

View

Retailer 22

£2,247 GBP

$3,015 USD

View

Price last confirmed 18 days ago

Retailer 23

£2,318 GBP

A$4,785 AUD

View

Price last confirmed 24 days ago

Retailer 24

£2,445 GBP

$3,280 USD

View

Retailer 25

£2,623 GBP

View

Retailer 26

£2,748 GBP

$3,688 USD

View

Retailer 27

£3,220 GBP

View

Retailer 28

£3,319 GBP

$4,453 USD

View

Retailer 29

£3,342 GBP

SGD 6,060 SGD

View

Retailer 30

£3,610 GBP

$4,844 USD

View

Retailer 31

£4,602 GBP

View

Most Expensive

Brilliant Earth

11545452A · Oct 31

£5,492 GBP

$7,370 USD

View

31 more retailers have this diamond

Prices start from £818 GBPSave up to £4,674 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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