Cushion|Lab Grown|IGI

2.73ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG836607949

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG836607949

Diamond specifications and retailer prices

From £1,186 GBP

As of October 29, 2026

Save £6,293 GBP (84%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £7,479 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 2.73ct lab-grown cushion diamond

This 2.73ct lab-grown cushion 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 LG836607949 or 836607949. Listed at 17 retailers as of October 29, 2026, with prices from £1,186 to £7,479, a £6,293 spread on the same certified stone. Brilliant Earth lists it at £7,479. 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

2.73

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.8°

Pavilion angle36.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG836607949

Dimensions7.94 × 7.81 × 5.33 mm

L/W Ratio1.02

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 LG836607949

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: £7,479 GBP|Low: £1,179 GBP|High: £7,487 GBP|Avg: £3,023 GBP|-0.1%

Brilliant Earth

Retailer 2

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Retailer 17

October 29, 2026

Retailer 12£1,186 GBP

Retailer 9£1,191 GBP

Retailer 15£1,289 GBP

Retailer 13£1,295 GBP

Retailer 2£1,644 GBP

Retailer 4£1,844 GBP

Retailer 11£2,144 GBP

Retailer 14£2,354 GBP

Retailer 17£2,815 GBP

Retailer 10£3,008 GBP

Retailer 3£3,142 GBP

Retailer 8£3,846 GBP

Retailer 6£4,096 GBP

Retailer 5£4,521 GBP

Retailer 7£4,731 GBP

Retailer 16£4,929 GBP

Brilliant Earth£7,479 GBP

24 data points across 17 retailers

17 retailers£1,186 GBP to £7,479 GBP

Cheapest Retailer

£1,186 GBP

Retailer 2

£1,191 GBP

$1,586 USD

View

Price last confirmed 17 days ago

Retailer 3

£1,289 GBP

$1,717 USD

View

Final sale: no returns

Retailer 4

£1,295 GBP

$1,725 USD

View

Retailer 5

£1,644 GBP

View

Retailer 6

£1,844 GBP

$2,455 USD

View

Retailer 7

£2,144 GBP

€2,719 EUR

View

Retailer 8

£2,354 GBP

$3,135 USD

View

Retailer 9

£2,815 GBP

View

B+

Retailer 10

£3,008 GBP

ZAR 64,705 ZAR

View

B+

Retailer 11

£3,142 GBP

$4,184 USD

View

Retailer 12

£3,846 GBP

View

Price last confirmed 8 days ago

B+

Retailer 13

£4,096 GBP

$5,454 USD

View

B+

Retailer 14

£4,521 GBP

SGD 8,135 SGD

View

Retailer 15

£4,731 GBP

$6,300 USD

View

Price last confirmed 8 days ago

Retailer 16

£4,929 GBP

$6,564 USD

View

Most Expensive

Brilliant Earth

21695638A · Oct 29

£7,479 GBP

$9,960 USD

View

16 more retailers have this diamond

Prices start from £1,186 GBPSave up to £6,293 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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2.73ct Cushion

£1,186 GBP