Cushion|Lab Grown|IGI

3.55ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG574366459

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG574366459

Diamond specifications and retailer prices

From £587 GBP

$787 USD

As of October 31, 2026

Save £2,092 GBP (78%) vs most expensive(unlock to see where)

15 retailers carry this diamond

Most expensive: £2,679 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 3.55ct lab-grown cushion diamond

This 3.55ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG574366459 or 574366459. Listed at 15 retailers as of October 31, 2026, with prices from £587 to £2,679, a £2,092 spread on the same certified stone. Brilliant Earth lists it at £2,679. 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

3.55

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.4°

Pavilion angle34.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG574366459

Dimensions9.52 × 7.93 × 5.36 mm

L/W Ratio1.20

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG574366459

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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

Price History

Last verified: Oct 31

Current: £2,679 GBP|Low: £517 GBP|High: £2,761 GBP|Avg: £1,461 GBP|-3.0%

Brilliant Earth

Retailer 2

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Retailer 5

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Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

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Retailer 15

October 31, 2026

Retailer 5£587 GBP

Retailer 12£609 GBP

Retailer 11£750 GBP

Retailer 4£849 GBP

Retailer 2£976 GBP

Retailer 15£980 GBP

Retailer 14£988 GBP

Retailer 8£1,375 GBP

Retailer 10£1,413 GBP

Retailer 3£1,888 GBP

Retailer 13£2,076 GBP

Retailer 6£2,089 GBP

Retailer 7£2,099 GBP

Retailer 9£2,404 GBP

Brilliant Earth£2,679 GBP

42 data points across 15 retailers

15 retailers£587 GBP to £2,679 GBP

Cheapest Retailer

£587 GBP

$787 USD

Final sale: no returns

Retailer 2

£609 GBP

$816 USD

View

Price last confirmed 14 days ago

Retailer 3

£750 GBP

$1,005 USD

View

Retailer 4

£849 GBP

$1,138 USD

View

Retailer 5

£976 GBP

View

Retailer 6

£980 GBP

$1,313 USD

View

Retailer 7

£988 GBP

$1,324 USD

View

B+

Retailer 8

£1,375 GBP

A$2,834 AUD

View

B+

Retailer 9

£1,413 GBP

ZAR 30,595 ZAR

View

Retailer 10

£1,888 GBP

View

Retailer 11

£2,076 GBP

$2,782 USD

View

Retailer 12

£2,089 GBP

$2,799 USD

View

Retailer 13

£2,099 GBP

$2,812 USD

View

Retailer 14

£2,404 GBP

View

Most Expensive

Brilliant Earth

19068869A · Oct 31

£2,679 GBP

$3,590 USD

View

14 more retailers have this diamond

Prices start from £587 GBPSave up to £2,092 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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