Cushion|Lab Grown|IGI

1.54ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG836614341

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836614341

Diamond specifications and retailer prices

From £490 GBP

As of October 30, 2026

Save £2,446 GBP (83%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £2,936 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 1.54ct lab-grown cushion diamond

This 1.54ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836614341 or 836614341. Listed at 17 retailers as of October 29, 2026, with prices from £490 to £2,936, a £2,446 spread on the same certified stone. Brilliant Earth lists it at £2,936. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.2°

Pavilion angle34.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG836614341

Dimensions8.45 × 5.81 × 3.86 mm

L/W Ratio1.45

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 LG836614341

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: £2,936 GBP|Low: £489 GBP|High: £2,944 GBP|Avg: £1,331 GBP|-0.3%

Brilliant Earth

Retailer 2

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Retailer 17

October 30, 2026

Retailer 2£490 GBP

Retailer 8£503 GBP

Retailer 14£548 GBP

Retailer 3£642 GBP

Retailer 4£737 GBP

Retailer 11£747 GBP

Retailer 10£791 GBP

Retailer 13£816 GBP

Retailer 16£844 GBP

Retailer 9£1,465 GBP

Retailer 6£1,541 GBP

Retailer 17£1,545 GBP

Retailer 15£1,665 GBP

Retailer 12£1,992 GBP

Retailer 7£1,997 GBP

Retailer 5£2,154 GBP

Brilliant Earth£2,936 GBP

23 data points across 17 retailers

17 retailers£490 GBP to £2,936 GBP

Cheapest Retailer

£490 GBP

Retailer 2

£503 GBP

$670 USD

View

Price last confirmed 14 days ago

Retailer 3

£548 GBP

$730 USD

View

Retailer 4

£642 GBP

$855 USD

View

Retailer 5

£737 GBP

$982 USD

View

Retailer 6

£747 GBP

€947 EUR

View

Retailer 7

£791 GBP

View

Retailer 8

£816 GBP

ZAR 17,549 ZAR

View

Retailer 9

£844 GBP

$1,124 USD

View

Retailer 10

£1,465 GBP

View

Price last confirmed 8 days ago

B+

Retailer 11

£1,541 GBP

SGD 2,774 SGD

View

B+

Retailer 12

£1,545 GBP

$2,057 USD

View

B+

Retailer 13

£1,665 GBP

$2,217 USD

View

B+

Retailer 14

£1,992 GBP

View

Retailer 15

£1,997 GBP

$2,660 USD

View

Price last confirmed 9 days ago

B+

Retailer 16

£2,154 GBP

$2,869 USD

View

Most Expensive

Brilliant Earth

21729122A · Oct 29

£2,936 GBP

$3,910 USD

View

16 more retailers have this diamond

Prices start from £490 GBPSave up to £2,446 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.

Where to buy this spec

See every retailer carrying 1.54ct E FL cushion lab-grown

Ranked by inventory count, with return policy, certs, and trust signals.

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