Cushion|Lab Grown|IGI

2.55ct E VS1 Cushion Lab Grown Diamond

ID • E/VS1 • IGI LG839647830

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG839647830

Diamond specifications and retailer prices

From £356 GBP

HK$3,700 HKD

As of October 30, 2026

Save £1,852 GBP (84%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: £2,208 GBP at Brilliant Earth · As of October 23, 2026

View at Brilliant Earth

About this 2.55ct lab-grown cushion diamond

This 2.55ct lab-grown cushion sits in the two to three carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839647830 or 839647830. Listed at 18 retailers as of October 23, 2026, with prices from £356 to £2,208, a £1,852 spread on the same certified stone. Brilliant Earth lists it at £2,208. 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

2.55

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.5°

Pavilion angle37.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG839647830

Dimensions9.61 × 6.89 × 4.63 mm

L/W Ratio1.39

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG839647830

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: £2,208 GBP|Low: £292 GBP|High: £3,318 GBP|Avg: £963 GBP

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

Retailer 14

Retailer 15

Retailer 16

Retailer 17

Retailer 18

Retailer 19

Retailer 20

October 28, 2026

Retailer 20£295 GBP

Retailer 15£342 GBP

Retailer 2£356 GBP

Retailer 16£488 GBP

Retailer 9£499 GBP

Retailer 4£525 GBP

Retailer 19£550 GBP

Retailer 14£577 GBP

Retailer 3£733 GBP

Retailer 13£776 GBP

Retailer 7£782 GBP

Retailer 6£1,044 GBP

Retailer 10£1,083 GBP

Retailer 17£1,236 GBP

Retailer 5£1,259 GBP

Retailer 11£1,271 GBP

Retailer 12£1,315 GBP

Retailer 18£1,394 GBP

Retailer 8£1,622 GBP

Brilliant Earth£2,208 GBP

25 data points across 20 retailers

18 retailers£356 GBP to £2,208 GBP

Retailer 1

£342 GBP

Price last confirmed 8 days ago

Retailer 2

£356 GBP

HK$3,700 HKD

View

Retailer 3

£488 GBP

$650 USD

View

Price last confirmed 6 days ago

Retailer 4

£525 GBP

$699 USD

View

Price last confirmed 9 days ago

Retailer 5

£550 GBP

$732 USD

View

Price last confirmed 8 days ago

Retailer 6

£577 GBP

View

Price last confirmed 7 days ago

Retailer 7

£733 GBP

A$1,502 AUD

View

Price last confirmed 10 days ago

Retailer 8

£776 GBP

$1,034 USD

View

Retailer 9

£782 GBP

ZAR 16,819 ZAR

View

Price last confirmed 11 days ago

Retailer 10

£1,044 GBP

SGD 1,878 SGD

View

Price last confirmed 7 days ago

Retailer 11

£1,083 GBP

$1,442 USD

View

Price last confirmed 8 days ago

Retailer 12

£1,236 GBP

$1,646 USD

View

Price last confirmed 7 days ago

Retailer 13

£1,259 GBP

$1,677 USD

View

Price last confirmed 9 days ago

Retailer 14

£1,271 GBP

View

Price last confirmed 12 days ago

Retailer 15

£1,315 GBP

A$2,695 AUD

View

Price last confirmed 21 days ago

Retailer 16

£1,394 GBP

$1,856 USD

View

Price last confirmed 8 days ago

Retailer 17

£1,622 GBP

$2,160 USD

View

Price last confirmed 11 days ago

Most Expensive

Brilliant Earth

21807920A · Oct 23

£2,208 GBP

$2,940 USD

View

17 more retailers have this diamond

Prices start from £356 GBPSave up to £1,852 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

2.55ct Cushion

£356 GBP