Cushion|Lab Grown|IGI

5.28ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG805618451

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG805618451

Diamond specifications and retailer prices

From £3,170 GBP

$4,222 USD

As of October 29, 2026

Save £5,871 GBP (65%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: £12,893 GBP at Taylor and Hart · As of October 30, 2026

View at Taylor and Hart

About this 5.28ct lab-grown cushion diamond

This 5.28ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG805618451 or 805618451. Listed at 15 retailers as of October 29, 2026, with a 185% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.28

Carat

Colour

VVS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37°

Pavilion angle37.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG805618451

Dimensions12.67 × 9.44 × 5.83 mm

L/W Ratio1.34

Girdle conditionFaceted

Culet sizeLarge

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 LG805618451

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29

Current: £4,770 GBP|Low: £2,316 GBP|High: £9,028 GBP|Avg: £5,521 GBP|-0.7%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

October 30, 2026

Retailer 11£2,637 GBP

Retailer 5£3,170 GBP

Retailer 9£3,285 GBP

Retailer 3£4,663 GBP

Retailer 1£4,770 GBP

Retailer 2£5,093 GBP

Retailer 8£7,313 GBP

Retailer 4£7,365 GBP

Retailer 7£7,486 GBP

Retailer 6£7,547 GBP

Retailer 10£8,317 GBP

42 data points across 11 retailers

15 retailers£3,170 GBP to £9,042 GBP

Retailer 1

£2,637 GBP

$3,512 USD

Price last confirmed 9 days ago

B+

Retailer 2

£3,170 GBP

$4,222 USD

View

Final sale: no returns

Retailer 3

£3,285 GBP

$4,374 USD

View

Price last confirmed 17 days ago

B+

Retailer 4

£3,330 GBP

$4,435 USD

View

Retailer 5

£4,663 GBP

$6,210 USD

View

B+

Retailer 6

£4,770 GBP

View

Retailer 7

£5,093 GBP

View

Retailer 8

£7,313 GBP

A$14,982 AUD

View

Price last confirmed 25 days ago

Retailer 9

£7,365 GBP

ZAR 158,451 ZAR

View

Retailer 10

£7,486 GBP

A$15,337 AUD

View

Price last confirmed 7 days ago

Retailer 11

£7,547 GBP

View

Retailer 12

£8,317 GBP

$11,075 USD

View

Retailer 13

£9,042 GBP

$12,041 USD

View

Most Expensive

Taylor and Hart

TSLWCF3 · Oct 30

£12,893 GBP

$17,170 USD

View

Price under review

13 more retailers have this diamond

Prices start from £3,170 GBPSave up to £5,871 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

B+

5.28ct Cushion

£3,170 GBP