Cushion|Lab Grown|IGI

4.19ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG811675420

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811675420

Diamond specifications and retailer prices

From £4,489 GBP

CA$8,354 CAD

As of October 30, 2026

Save £19,814 GBP (82%) vs most expensive(unlock to see where)

21 retailers carry this diamond

Most expensive: £24,303 GBP at With Clarity · As of October 31, 2026

View at With Clarity

About this 4.19ct lab-grown cushion diamond

This 4.19ct lab-grown cushion 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 LG811675420 or 811675420. Listed at 21 retailers as of October 30, 2026, with prices from £4,489 to £24,303, a £19,814 spread on the same certified stone. With Clarity lists it at £24,303. 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

4.19

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.9°

Pavilion angle37.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG811675420

Dimensions11.29 × 8.44 × 5.65 mm

L/W Ratio1.34

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 LG811675420

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: £5,486 GBP|Low: £3,591 GBP|High: £12,342 GBP|Avg: £7,815 GBP|+52.8%

Retailer 1

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

October 31, 2026

Retailer 14£4,796 GBP

Retailer 11£4,836 GBP

Retailer 2£4,853 GBP

Retailer 6£5,197 GBP

Retailer 1£5,486 GBP

Retailer 7£6,157 GBP

Retailer 4£6,813 GBP

Retailer 9£7,559 GBP

Retailer 13£8,105 GBP

Retailer 10£9,812 GBP

Retailer 8£10,208 GBP

Retailer 12£10,702 GBP

Retailer 3£12,337 GBP

Retailer 5£12,342 GBP

42 data points across 14 retailers

21 retailers£4,489 GBP to £24,303 GBP

Cheapest Retailer

£4,489 GBP

CA$8,354 CAD

Retailer 2

£4,796 GBP

$6,426 USD

View

Price last confirmed 15 days ago

Retailer 3

£4,799 GBP

$6,430 USD

View

Retailer 4

£4,836 GBP

$6,480 USD

View

Retailer 5

£4,853 GBP

$6,502 USD

View

Retailer 6

£5,197 GBP

$6,963 USD

View

Retailer 7

£5,486 GBP

$7,351 USD

View

Final sale: no returns

Retailer 8

£6,157 GBP

View

B+

Retailer 9

£6,813 GBP

View

B+

Retailer 10

£7,559 GBP

€9,646 EUR

View

B+

Retailer 11

£8,105 GBP

$10,860 USD

View

B+

Retailer 12

£9,812 GBP

View

B+

Retailer 13

£10,208 GBP

ZAR 220,958 ZAR

View

B+

Retailer 14

£10,702 GBP

$14,339 USD

View

Retailer 15

£11,695 GBP

$15,670 USD

View

Retailer 16

£12,337 GBP

$16,530 USD

View

Price last confirmed 37 days ago

Retailer 17

£12,342 GBP

$16,537 USD

View

Retailer 18

£12,909 GBP

$17,296 USD

View

Retailer 19

£13,340 GBP

$17,874 USD

View

Retailer 20

£16,955 GBP

$22,718 USD

View

Most Expensive

With Clarity

811675420 · Oct 31

£24,303 GBP

$32,563 USD

View

20 more retailers have this diamond

Prices start from £4,489 GBPSave up to £19,814 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

4.19ct Cushion

£4,489 GBP