Radiant|Lab Grown|IGI

3.54ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG741529778

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

Certificate IGI LG741529778

Diamond specifications and retailer prices

From £1,476 GBP

$1,978 USD

As of October 30, 2026

Save £7,345 GBP (83%) vs most expensive(unlock to see where)

21 retailers carry this diamond

Most expensive: £8,822 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 3.54ct lab-grown radiant diamond

This 3.54ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG741529778 or 741529778. Listed at 21 retailers as of October 29, 2026, with prices from £1,476 to £8,822, a £7,345 spread on the same certified stone. Brilliant Earth lists it at £8,822. 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

3.54

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle42.7°

Pavilion angle34.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG741529778

Dimensions11.00 × 7.41 × 5.01 mm

L/W Ratio1.48

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG741529778

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 30

Current: £8,822 GBP|Low: £1,180 GBP|High: £8,986 GBP|Avg: £4,126 GBP|-1.8%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

October 30, 2026

Retailer 2£1,653 GBP

Retailer 11£1,836 GBP

Retailer 5£2,356 GBP

Retailer 10£2,563 GBP

Retailer 7£2,573 GBP

Retailer 3£3,253 GBP

Retailer 9£4,018 GBP

Retailer 8£4,668 GBP

Retailer 6£4,917 GBP

Retailer 4£5,516 GBP

Retailer 12£5,721 GBP

Brilliant Earth£8,822 GBP

41 data points across 12 retailers

21 retailers£1,476 GBP to £8,822 GBP

Cheapest Retailer

£1,476 GBP

$1,978 USD

Retailer 2

£1,606 GBP

$2,152 USD

View

Retailer 3

£1,653 GBP

$2,215 USD

View

Final sale: no returns

Retailer 4

£1,713 GBP

$2,295 USD

View

Retailer 5

£1,836 GBP

$2,460 USD

View

Retailer 6

£1,977 GBP

HK$20,700 HKD

View

Retailer 7

£2,356 GBP

View

Retailer 8

£2,563 GBP

$3,434 USD

View

Retailer 9

£2,573 GBP

€3,284 EUR

View

Price last confirmed 7 days ago

B+

Retailer 10

£3,172 GBP

$4,250 USD

View

B+

Retailer 11

£3,253 GBP

View

B+

Retailer 12

£3,366 GBP

$4,510 USD

View

B+

Retailer 13

£4,018 GBP

$5,384 USD

View

B+

Retailer 14

£4,668 GBP

$6,255 USD

View

B+

Retailer 15

£4,917 GBP

View

Retailer 16

£5,126 GBP

$6,868 USD

View

Retailer 17

£5,516 GBP

$7,391 USD

View

Retailer 18

£5,721 GBP

SGD 10,359 SGD

View

Retailer 19

£5,994 GBP

$8,031 USD

View

Retailer 20

£8,146 GBP

$10,915 USD

View

Most Expensive

Brilliant Earth

20552395A · Oct 29

£8,822 GBP

$11,820 USD

View

20 more retailers have this diamond

Prices start from £1,476 GBPSave up to £7,345 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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