Round|Lab Grown|IGI

2.91ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG825667160

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825667160

Diamond specifications and retailer prices

From £905 GBP

$1,213 USD

As of October 30, 2026

Save £4,782 GBP (84%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: £5,687 GBP at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 2.91ct lab-grown round diamond

This 2.91ct lab-grown round sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825667160 or 825667160. Listed at 19 retailers as of October 30, 2026, with prices from £905 to £5,687, a £4,782 spread on the same certified stone. Brilliant Earth lists it at £5,687. 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

2.91

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.6°

Pavilion angle40.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG825667160

Dimensions9.17 × 9.09 × 5.63 mm

L/W Ratio1.01

Girdle conditionFaceted

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 LG825667160

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: £5,687 GBP|Low: £1,067 GBP|High: £8,904 GBP|Avg: £2,867 GBP|-36.1%

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

October 30, 2026

Retailer 10£1,067 GBP

Retailer 9£1,361 GBP

Retailer 2£1,418 GBP

Retailer 3£1,494 GBP

Retailer 4£1,872 GBP

Retailer 12£2,397 GBP

Retailer 8£2,478 GBP

Retailer 6£2,977 GBP

Retailer 7£3,203 GBP

Retailer 11£3,215 GBP

Retailer 5£3,278 GBP

Retailer 13£4,422 GBP

Brilliant Earth£5,687 GBP

31 data points across 13 retailers

19 retailers£905 GBP to £5,687 GBP

Retailer 1

£808 GBP

$1,083 USD

Price last confirmed 20 days ago

Retailer 2

£880 GBP

$1,179 USD

View

Price last confirmed 17 days ago

Retailer 3

£905 GBP

$1,213 USD

View

Final sale: no returns

Retailer 4

£938 GBP

$1,257 USD

View

Price last confirmed 13 days ago

Retailer 5

£1,067 GBP

$1,430 USD

View

Price last confirmed 11 days ago

Retailer 6

£1,078 GBP

$1,444 USD

View

Price last confirmed 33 days ago

Retailer 7

£1,361 GBP

View

Price last confirmed 13 days ago

Retailer 8

£1,418 GBP

€1,809 EUR

View

Retailer 9

£1,494 GBP

$2,002 USD

View

Price last confirmed 14 days ago

Retailer 10

£1,758 GBP

$2,356 USD

View

Price last confirmed 20 days ago

Retailer 11

£1,872 GBP

$2,508 USD

View

Price last confirmed 10 days ago

Retailer 12

£2,397 GBP

ZAR 51,893 ZAR

View

Price last confirmed 15 days ago

B+

Retailer 13

£2,478 GBP

$3,320 USD

View

B+

Retailer 14

£2,977 GBP

SGD 5,391 SGD

View

B+

Retailer 15

£3,203 GBP

$4,292 USD

View

Retailer 16

£3,215 GBP

View

Price last confirmed 15 days ago

Retailer 17

£3,278 GBP

$4,392 USD

View

Price last confirmed 13 days ago

Retailer 18

£4,422 GBP

$5,925 USD

View

Price last confirmed 16 days ago

Most Expensive

Brilliant Earth

21433899A · Oct 30

£5,687 GBP

$7,620 USD

View

18 more retailers have this diamond

Prices start from £905 GBPSave up to £4,782 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

2.91ct Round

£905 GBP