Radiant|Lab Grown|IGI

3.13ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG818654284

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

Certificate IGI LG818654284

Diamond specifications and retailer prices

From £1,529 GBP

$2,036 USD

As of October 27, 2026

Save £7,107 GBP (82%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: £8,636 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 3.13ct lab-grown radiant diamond

This 3.13ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818654284 or 818654284. Listed at 22 retailers as of October 27, 2026, with prices from £1,529 to £8,636, a £7,107 spread on the same certified stone. Brilliant Earth lists it at £8,636. 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

3.13

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle40.9°

Pavilion angle34.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG818654284

Dimensions9.87 × 7.26 × 4.99 mm

L/W Ratio1.36

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 LG818654284

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 27

Current: £8,636 GBP|Low: £1,529 GBP|High: £8,643 GBP|Avg: £3,858 GBP|+1.2%

Brilliant Earth

Retailer 2

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October 30, 2026

Retailer 10£1,529 GBP

Retailer 18£1,663 GBP

Retailer 9£1,773 GBP

Retailer 6£1,798 GBP

Retailer 19£1,872 GBP

Retailer 17£1,900 GBP

Retailer 8£2,438 GBP

Retailer 2£2,440 GBP

Retailer 3£2,591 GBP

Retailer 4£2,603 GBP

Retailer 21£2,775 GBP

Retailer 20£2,962 GBP

Retailer 5£3,365 GBP

Retailer 13£4,118 GBP

Retailer 7£4,632 GBP

Retailer 16£4,896 GBP

Retailer 15£5,092 GBP

Retailer 11£6,204 GBP

Retailer 14£6,276 GBP

Retailer 12£6,873 GBP

Brilliant Earth£8,636 GBP

29 data points across 21 retailers

22 retailers£1,529 GBP to £8,636 GBP

Cheapest Retailer

£1,529 GBP

$2,036 USD

Retailer 2

£1,663 GBP

$2,215 USD

View

Retailer 3

£1,773 GBP

$2,361 USD

View

Retailer 4

£1,798 GBP

$2,394 USD

View

Final sale: no returns

Retailer 5

£1,872 GBP

$2,493 USD

View

Retailer 6

£1,876 GBP

$2,498 USD

View

Price last confirmed 19 days ago

Retailer 7

£1,900 GBP

$2,530 USD

View

Retailer 8

£2,438 GBP

$3,246 USD

View

Retailer 9

£2,440 GBP

View

Retailer 10

£2,591 GBP

$3,451 USD

View

Retailer 11

£2,603 GBP

$3,466 USD

View

B+

Retailer 12

£2,775 GBP

$3,695 USD

View

B+

Retailer 13

£2,962 GBP

€3,756 EUR

View

B+

Retailer 14

£3,365 GBP

View

B+

Retailer 15

£4,118 GBP

ZAR 88,587 ZAR

View

B+

Retailer 16

£4,632 GBP

$6,169 USD

View

B+

Retailer 17

£4,896 GBP

$6,520 USD

View

B+

Retailer 18

£5,092 GBP

View

Retailer 19

£6,204 GBP

$8,262 USD

View

Retailer 20

£6,276 GBP

SGD 11,294 SGD

View

Retailer 21

£6,873 GBP

$9,152 USD

View

Most Expensive

Brilliant Earth

21434192A · Oct 29

£8,636 GBP

$11,500 USD

View

21 more retailers have this diamond

Prices start from £1,529 GBPSave up to £7,107 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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