Cushion|Lab Grown|IGI

5.28ct F VVS1 Cushion Lab Grown Diamond

ID • F/VVS1 • IGI LG499188303

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG499188303

Diamond specifications and retailer prices

From £2,324 GBP

$3,119 USD

As of November 2, 2026

Save £5,871 GBP (72%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: £11,290 GBP at Brilliance · As of October 5, 2026

View at Brilliance

About this 5.28ct lab-grown cushion diamond

This 5.28ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG499188303 or 499188303. Listed at 12 retailers as of November 2, 2026, with a 253% 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

SymmetryVery Good

FluorescenceNone

Crown angle37.6°

Pavilion angle34°

OriginLab Grown

Grading LabIGI

CertificateIGI LG499188303

Dimensions10.24 × 9.53 × 6.44 mm

L/W Ratio1.07

Girdle conditionFaceted

Culet sizePointed

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

SymmetryVery Good

FluorescenceNone

CertificateIGI LG499188303

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: Nov 2

Current: £11,290 GBP|Low: £2,324 GBP|High: £26,372 GBP|Avg: £7,817 GBP|+20.4%

Brilliance

Retailer 2

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Retailer 18

November 2, 2026

Retailer 12£2,324 GBP

Retailer 15£2,660 GBP

Retailer 16£2,677 GBP

Retailer 2£3,158 GBP

Retailer 6£4,176 GBP

Retailer 5£4,278 GBP

Retailer 14£4,397 GBP

Retailer 18£4,447 GBP

Retailer 9£4,460 GBP

Retailer 17£6,407 GBP

Retailer 7£6,950 GBP

Retailer 11£7,273 GBP

Retailer 13£8,195 GBP

Retailer 3£9,971 GBP

Retailer 4£10,072 GBP

Brilliance£11,290 GBP

Retailer 10£17,229 GBP

Retailer 8£26,372 GBP

29 data points across 18 retailers

12 retailers£2,324 GBP to £8,195 GBP

B+

Cheapest Retailer

£2,324 GBP

$3,119 USD

B+

Retailer 2

£2,660 GBP

$3,570 USD

View

B+

Retailer 3

£2,677 GBP

CA$4,990 CAD

View

B+

Retailer 4

£3,158 GBP

€4,036 EUR

View

Retailer 5

£4,397 GBP

$5,900 USD

View

Price last confirmed 14 days ago

Retailer 6

£6,950 GBP

View

Price last confirmed 26 days ago

Retailer 7

£7,273 GBP

$9,760 USD

View

Retailer 8

£8,195 GBP

$10,997 USD

View

Retailer 9

£9,971 GBP

ZAR 216,165 ZAR

View

Price under review

Retailer 10

£10,072 GBP

View

Price under review

Most Expensive

Brilliance

D44922328 · Oct 5

£11,290 GBP

$15,151 USD

View

Price under review

10 more retailers have this diamond

Prices start from £2,324 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.

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B+

5.28ct Cushion

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