Round|Lab Grown|IGI

1.81ct D FL Round Lab Grown Diamond

EX • D/FL • IGI LG840634436

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840634436

Diamond specifications and retailer prices

From £352 GBP

$471 USD

As of October 29, 2026

Save £2,134 GBP (86%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: £2,485 GBP at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 1.81ct lab-grown round diamond

This 1.81ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840634436 or 840634436. Listed at 22 retailers as of October 29, 2026, with prices from £352 to £2,485, a £2,134 spread on the same certified stone. Brilliant Earth lists it at £2,485. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.2°

Pavilion angle41°

OriginLab Grown

Grading LabIGI

CertificateIGI LG840634436

Dimensions7.75 × 7.79 × 4.86 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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG840634436

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: £2,485 GBP|Low: £352 GBP|High: £4,523 GBP|Avg: £1,259 GBP|-45.0%

Brilliant Earth

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October 30, 2026

Retailer 7£352 GBP

Retailer 21£393 GBP

Retailer 3£407 GBP

Retailer 11£436 GBP

Retailer 19£541 GBP

Retailer 2£559 GBP

Retailer 9£620 GBP

Retailer 4£680 GBP

Retailer 13£720 GBP

Retailer 17£723 GBP

Retailer 18£748 GBP

Retailer 6£1,029 GBP

Retailer 5£1,171 GBP

Retailer 12£1,400 GBP

Retailer 10£1,422 GBP

Retailer 8£1,497 GBP

Retailer 20£1,522 GBP

Retailer 22£1,554 GBP

Retailer 16£1,608 GBP

Retailer 15£2,407 GBP

Retailer 14£2,444 GBP

Brilliant Earth£2,485 GBP

15 data points across 22 retailers

22 retailers£352 GBP to £2,485 GBP

Cheapest Retailer

£352 GBP

$471 USD

Retailer 2

£393 GBP

$527 USD

View

Retailer 3

£407 GBP

$545 USD

View

Final sale: no returns

Retailer 4

£436 GBP

$584 USD

View

Retailer 5

£541 GBP

$725 USD

View

Retailer 6

£559 GBP

View

Retailer 7

£620 GBP

$831 USD

View

Retailer 8

£680 GBP

$911 USD

View

Retailer 9

£720 GBP

View

Retailer 10

£723 GBP

€922 EUR

View

Retailer 11

£748 GBP

ZAR 16,201 ZAR

View

B+

Retailer 12

£1,029 GBP

$1,379 USD

View

B+

Retailer 13

£1,171 GBP

$1,569 USD

View

Retailer 14

£1,400 GBP

$1,876 USD

View

B+

Retailer 15

£1,422 GBP

$1,906 USD

View

B+

Retailer 16

£1,497 GBP

SGD 2,711 SGD

View

B+

Retailer 17

£1,522 GBP

$2,039 USD

View

Retailer 18

£1,554 GBP

$2,082 USD

View

B+

Retailer 19

£1,608 GBP

View

Retailer 20

£2,407 GBP

$3,225 USD

View

Retailer 21

£2,444 GBP

$3,275 USD

View

Most Expensive

Brilliant Earth

22142868A · Oct 30

£2,485 GBP

$3,330 USD

View

21 more retailers have this diamond

Prices start from £352 GBPSave up to £2,134 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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1.81ct Round

£352 GBP