Radiant|Lab Grown|IGI

3.12ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG605367011

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

Certificate IGI LG605367011

Diamond specifications and retailer prices

From £2,789 GBP

$3,714 USD

As of October 27, 2026

Save £8,639 GBP (76%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: £11,428 GBP at Taylor and Hart · As of October 27, 2026

View at Taylor and Hart

About this 3.12ct lab-grown radiant diamond

This 3.12ct 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 LG605367011 or 605367011. Listed at 22 retailers as of October 27, 2026, with prices from £2,789 to £11,428, a £8,639 spread on the same certified stone. Taylor and Hart lists it at £11,428. 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

3.12

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle46.4°

Pavilion angle30.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG605367011

Dimensions10.05 × 7.10 × 4.87 mm

L/W Ratio1.42

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 LG605367011

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: £7,512 GBP|Low: £2,678 GBP|High: £9,421 GBP|Avg: £5,035 GBP|+1.9%

Retailer 1

Retailer 2

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Retailer 4

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Retailer 10

Retailer 11

Retailer 12

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Retailer 17

October 29, 2026

Retailer 17£2,789 GBP

Retailer 7£3,123 GBP

Retailer 4£3,236 GBP

Retailer 9£3,236 GBP

Retailer 5£3,349 GBP

Retailer 12£3,582 GBP

Retailer 16£3,902 GBP

Retailer 6£4,043 GBP

Retailer 10£4,232 GBP

Retailer 13£4,677 GBP

Retailer 14£5,441 GBP

Retailer 2£5,865 GBP

Retailer 11£6,968 GBP

Retailer 15£7,403 GBP

Retailer 1£7,512 GBP

Retailer 3£8,146 GBP

Retailer 8£9,421 GBP

34 data points across 17 retailers

22 retailers£2,789 GBP to £11,428 GBP

Cheapest Retailer

£2,789 GBP

$3,714 USD

B+

Retailer 2

£3,017 GBP

$4,018 USD

View

B+

Retailer 3

£3,035 GBP

$4,041 USD

View

B+

Retailer 4

£3,109 GBP

$4,140 USD

View

B+

Retailer 5

£3,123 GBP

$4,159 USD

View

Final sale: no returns

B+

Retailer 6

£3,236 GBP

$4,309 USD

View

Retailer 7

£3,236 GBP

$4,309 USD

View

Price last confirmed 17 days ago

B+

Retailer 8

£3,349 GBP

$4,460 USD

View

B+

Retailer 9

£3,582 GBP

View

B+

Retailer 10

£3,902 GBP

$5,196 USD

View

B+

Retailer 11

£4,043 GBP

$5,384 USD

View

B+

Retailer 12

£4,232 GBP

View

B+

Retailer 13

£4,677 GBP

$6,228 USD

View

Retailer 14

£4,967 GBP

View

B+

Retailer 15

£5,441 GBP

€6,901 EUR

View

Retailer 16

£5,865 GBP

$7,810 USD

View

Retailer 17

£6,968 GBP

View

Retailer 18

£7,403 GBP

A$15,167 AUD

View

Price last confirmed 7 days ago

Retailer 19

£7,512 GBP

ZAR 161,603 ZAR

View

Retailer 20

£8,146 GBP

$10,848 USD

View

Retailer 21

£9,421 GBP

$12,546 USD

View

Most Expensive

Taylor and Hart

ES467IL · Oct 27

£11,428 GBP

$15,219 USD

View

21 more retailers have this diamond

Prices start from £2,789 GBPSave up to £8,639 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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