Cushion|Lab Grown|IGI

4.56ct F VS2 Cushion Lab Grown Diamond

ID • F/VS2 • IGI LG826673994

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG826673994

Diamond specifications and retailer prices

From £491 GBP

As of October 27, 2026

Save £2,390 GBP (83%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £2,881 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 4.56ct lab-grown cushion diamond

This 4.56ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG826673994 or 826673994. Listed at 16 retailers as of October 27, 2026, with prices from £491 to £2,881, a £2,390 spread on the same certified stone. Brilliant Earth lists it at £2,881. 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

4.56

Carat

Colour

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.2°

Pavilion angle31.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG826673994

Dimensions11.62 × 8.32 × 5.53 mm

L/W Ratio1.40

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 LG826673994

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 27

Current: £2,881 GBP|Low: £490 GBP|High: £2,881 GBP|Avg: £1,533 GBP

Brilliant Earth

Retailer 2

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October 31, 2026

Retailer 15£491 GBP

Retailer 5£512 GBP

Retailer 11£611 GBP

Retailer 14£657 GBP

Retailer 2£815 GBP

Retailer 17£869 GBP

Retailer 16£883 GBP

Retailer 10£1,211 GBP

Retailer 3£1,355 GBP

Retailer 7£1,649 GBP

Retailer 13£1,771 GBP

Retailer 6£1,811 GBP

Retailer 9£2,306 GBP

Retailer 8£2,311 GBP

Retailer 4£2,466 GBP

Retailer 12£2,477 GBP

Brilliant Earth£2,881 GBP

31 data points across 17 retailers

16 retailers£491 GBP to £2,881 GBP

Cheapest Retailer

£491 GBP

Retailer 2

£611 GBP

HK$6,400 HKD

View

Retailer 3

£657 GBP

$880 USD

View

Retailer 4

£815 GBP

€1,040 EUR

View

B+

Retailer 5

£869 GBP

$1,164 USD

View

Retailer 6

£883 GBP

View

Retailer 7

£1,211 GBP

$1,623 USD

View

Retailer 8

£1,355 GBP

$1,815 USD

View

B+

Retailer 9

£1,649 GBP

View

B+

Retailer 10

£1,771 GBP

SGD 3,206 SGD

View

B+

Retailer 11

£1,811 GBP

$2,427 USD

View

Retailer 12

£2,306 GBP

$3,090 USD

View

Price last confirmed 18 days ago

Retailer 13

£2,311 GBP

A$4,763 AUD

View

Price last confirmed 24 days ago

Retailer 14

£2,466 GBP

View

Retailer 15

£2,477 GBP

$3,319 USD

View

Most Expensive

Brilliant Earth

21013608A · Oct 31

£2,881 GBP

$3,860 USD

View

15 more retailers have this diamond

Prices start from £491 GBPSave up to £2,390 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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4.56ct Cushion

£491 GBP