Cushion|Lab Grown|IGI

11.05ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG627413588

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG627413588

Diamond specifications and retailer prices

From £1,643 GBP

As of November 1, 2026

Save £11,754 GBP (88%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £13,397 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 11.05ct lab-grown cushion diamond

This 11.05ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG627413588 or 627413588. Listed at 17 retailers as of October 31, 2026, with prices from £1,643 to £13,397, a £11,754 spread on the same certified stone. Brilliant Earth lists it at £13,397. 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

11.05

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle38.4°

Pavilion angle39.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG627413588

Dimensions12.96 × 12.30 × 8.45 mm

L/W Ratio1.05

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG627413588

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: Nov 1

Current: £13,397 GBP|Low: £1,642 GBP|High: £13,397 GBP|Avg: £3,785 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

November 1, 2026

Retailer 8£1,643 GBP

Retailer 5£1,975 GBP

Retailer 15£2,046 GBP

Retailer 4£2,168 GBP

Retailer 7£2,410 GBP

Retailer 9£2,817 GBP

Retailer 14£2,858 GBP

Retailer 11£3,167 GBP

Retailer 3£3,191 GBP

Retailer 10£3,240 GBP

Retailer 2£3,790 GBP

Retailer 13£5,191 GBP

Retailer 12£5,472 GBP

Retailer 6£5,761 GBP

Brilliant Earth£13,397 GBP

41 data points across 15 retailers

17 retailers£1,643 GBP to £13,397 GBP

Cheapest Retailer

£1,643 GBP

Retailer 2

£1,975 GBP

$2,646 USD

View

Final sale: no returns

Retailer 3

£2,046 GBP

$2,741 USD

View

Price last confirmed 21 days ago

Retailer 4

£2,168 GBP

$2,905 USD

View

Retailer 5

£2,410 GBP

$3,229 USD

View

Retailer 6

£2,817 GBP

View

Retailer 7

£2,858 GBP

$3,829 USD

View

Retailer 8

£3,167 GBP

ZAR 68,549 ZAR

View

Retailer 9

£3,191 GBP

$4,275 USD

View

Retailer 10

£3,240 GBP

€4,135 EUR

View

B+

Retailer 11

£3,790 GBP

A$7,813 AUD

View

B+

Retailer 12

£3,879 GBP

View

B+

Retailer 13

£5,191 GBP

$6,956 USD

View

B+

Retailer 14

£5,472 GBP

$7,332 USD

View

Retailer 15

£5,761 GBP

$7,719 USD

View

Retailer 16

£7,143 GBP

$9,570 USD

View

Most Expensive

Brilliant Earth

20601816A · Oct 31

£13,397 GBP

$17,950 USD

View

16 more retailers have this diamond

Prices start from £1,643 GBPSave up to £11,754 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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£1,643 GBP