Round|Lab Grown|IGI

2.40ct E IF Round Lab Grown Diamond

EX • E/IF • IGI LG840666627

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840666627

Diamond specifications and retailer prices

From £372 GBP

$498 USD

As of October 29, 2026

Save £2,994 GBP (89%) vs most expensive(unlock to see where)

23 retailers carry this diamond

Most expensive: £3,366 GBP at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 2.4ct lab-grown round diamond

This 2.4ct lab-grown round sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840666627 or 840666627. Listed at 23 retailers as of October 29, 2026, with prices from £372 to £3,366, a £2,994 spread on the same certified stone. Brilliant Earth lists it at £3,366. 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

2.40

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle31.5°

Pavilion angle41.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG840666627

Dimensions8.64 × 8.70 × 5.31 mm

L/W Ratio1.01

Girdle conditionFaceted

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 LG840666627

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: £3,366 GBP|Low: £357 GBP|High: £6,015 GBP|Avg: £1,244 GBP|-44.0%

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

Retailer 19

Retailer 20

Retailer 21

Retailer 22

Retailer 23

October 31, 2026

Retailer 4£372 GBP

Retailer 6£416 GBP

Retailer 11£416 GBP

Retailer 3£460 GBP

Retailer 12£460 GBP

Retailer 18£514 GBP

Retailer 22£563 GBP

Retailer 7£616 GBP

Retailer 2£698 GBP

Retailer 5£716 GBP

Retailer 13£764 GBP

Retailer 19£1,022 GBP

Retailer 17£1,067 GBP

Retailer 21£1,111 GBP

Retailer 10£1,178 GBP

Retailer 14£1,211 GBP

Retailer 9£1,500 GBP

Retailer 16£1,513 GBP

Retailer 8£1,599 GBP

Retailer 23£1,599 GBP

Retailer 20£1,933 GBP

Retailer 15£2,590 GBP

Brilliant Earth£3,366 GBP

25 data points across 23 retailers

23 retailers£372 GBP to £3,366 GBP

Cheapest Retailer

£372 GBP

$498 USD

Retailer 2

£416 GBP

$557 USD

View

Retailer 3

£416 GBP

$557 USD

View

Final sale: no returns

Retailer 4

£460 GBP

$617 USD

View

Price last confirmed 15 days ago

Retailer 5

£460 GBP

$617 USD

View

Retailer 6

£514 GBP

View

Retailer 7

£563 GBP

$755 USD

View

Retailer 8

£616 GBP

$825 USD

View

Retailer 9

£698 GBP

€891 EUR

View

Retailer 10

£716 GBP

$960 USD

View

Retailer 11

£764 GBP

View

Retailer 12

£1,022 GBP

A$2,107 AUD

View

Retailer 13

£1,067 GBP

$1,430 USD

View

Retailer 14

£1,111 GBP

ZAR 24,050 ZAR

View

Retailer 15

£1,178 GBP

$1,578 USD

View

Retailer 16

£1,211 GBP

$1,623 USD

View

B+

Retailer 17

£1,500 GBP

$2,010 USD

View

B+

Retailer 18

£1,502 GBP

$2,012 USD

View

B+

Retailer 19

£1,599 GBP

$2,143 USD

View

B+

Retailer 20

£1,599 GBP

$2,143 USD

View

B+

Retailer 21

£1,933 GBP

View

Retailer 22

£2,590 GBP

$3,470 USD

View

Price last confirmed 24 days ago

Most Expensive

Brilliant Earth

21716845A · Oct 30

£3,366 GBP

$4,510 USD

View

22 more retailers have this diamond

Prices start from £372 GBPSave up to £2,994 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.

Similar diamonds

2.40ct Round

£372 GBP