Cushion|Lab Grown|IGI

9.01ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG582387148

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG582387148

Diamond specifications and retailer prices

From £1,190 GBP

$1,595 USD

As of October 31, 2026

Save £3,668 GBP (75%) vs most expensive(unlock to see where)

13 retailers carry this diamond

Most expensive: £4,859 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 9.01ct lab-grown cushion diamond

This 9.01ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG582387148 or 582387148. Listed at 13 retailers as of October 29, 2026, with prices from £1,190 to £4,859, a £3,668 spread on the same certified stone. Brilliant Earth lists it at £4,859. 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

9.01

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.2°

Pavilion angle38.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG582387148

Dimensions12.21 × 12.01 × 7.88 mm

L/W Ratio1.02

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 LG582387148

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 31

Current: £4,859 GBP|Low: £740 GBP|High: £5,015 GBP|Avg: £2,328 GBP|-3.1%

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

October 31, 2026

Retailer 13£1,023 GBP

Retailer 15£1,061 GBP

Retailer 8£1,190 GBP

Retailer 7£1,417 GBP

Retailer 3£1,478 GBP

Retailer 10£1,641 GBP

Retailer 14£1,681 GBP

Retailer 2£1,738 GBP

Retailer 11£1,963 GBP

Retailer 5£2,559 GBP

Retailer 4£2,907 GBP

Retailer 12£3,176 GBP

Retailer 9£3,425 GBP

Retailer 6£3,717 GBP

Brilliant Earth£4,859 GBP

30 data points across 15 retailers

13 retailers£1,190 GBP to £4,859 GBP

Retailer 1

£1,061 GBP

$1,421 USD

Price last confirmed 20 days ago

Retailer 2

£1,190 GBP

$1,595 USD

View

Retailer 3

£1,478 GBP

$1,981 USD

View

Retailer 4

£1,641 GBP

ZAR 35,528 ZAR

View

B+

Retailer 5

£1,681 GBP

$2,253 USD

View

Retailer 6

£1,738 GBP

€2,218 EUR

View

Retailer 7

£1,963 GBP

A$4,046 AUD

View

Price last confirmed 10 days ago

Retailer 8

£2,559 GBP

View

Price last confirmed 20 days ago

B+

Retailer 9

£2,907 GBP

$3,895 USD

View

Retailer 10

£3,176 GBP

$4,256 USD

View

Price last confirmed 20 days ago

B+

Retailer 11

£3,425 GBP

View

B+

Retailer 12

£3,717 GBP

$4,981 USD

View

Most Expensive

Brilliant Earth

11109567A · Oct 29

£4,859 GBP

$6,510 USD

View

12 more retailers have this diamond

Prices start from £1,190 GBPSave up to £3,668 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

9.01ct Cushion

£1,190 GBP