Cushion|Lab Grown|IGI

6.09ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG782647037

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG782647037

Diamond specifications and retailer prices

From £1,252 GBP

$1,677 USD

As of October 31, 2026

Save £6,988 GBP (85%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £8,239 GBP at Brilliant Earth · As of October 29, 2026

View at Brilliant Earth

About this 6.09ct lab-grown cushion diamond

This 6.09ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG782647037 or 782647037. Listed at 17 retailers as of October 29, 2026, with prices from £1,252 to £8,239, a £6,988 spread on the same certified stone. Brilliant Earth lists it at £8,239. 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

6.09

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.6°

Pavilion angle39.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG782647037

Dimensions10.64 × 10.47 × 7.00 mm

L/W Ratio1.02

Girdle conditionFaceted

Culet sizePointed

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 LG782647037

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: £8,239 GBP|Low: £1,252 GBP|High: £9,531 GBP|Avg: £3,045 GBP|-13.5%

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

Retailer 16

Retailer 17

Retailer 18

October 31, 2026

Retailer 4£1,252 GBP

Retailer 6£1,297 GBP

Retailer 17£1,332 GBP

Retailer 16£1,373 GBP

Retailer 7£1,602 GBP

Retailer 11£1,832 GBP

Retailer 5£2,044 GBP

Retailer 2£2,105 GBP

Retailer 14£2,408 GBP

Retailer 12£2,511 GBP

Retailer 8£2,632 GBP

Retailer 9£3,128 GBP

Retailer 3£3,497 GBP

Retailer 13£3,725 GBP

Retailer 18£3,798 GBP

Retailer 15£4,471 GBP

Retailer 10£4,563 GBP

Brilliant Earth£8,239 GBP

42 data points across 18 retailers

17 retailers£1,252 GBP to £8,239 GBP

Cheapest Retailer

£1,252 GBP

$1,677 USD

Final sale: no returns

Retailer 2

£1,297 GBP

$1,738 USD

View

Price last confirmed 20 days ago

Retailer 3

£1,332 GBP

$1,785 USD

View

Retailer 4

£1,373 GBP

View

Price last confirmed 14 days ago

Retailer 5

£1,602 GBP

$2,146 USD

View

Retailer 6

£1,832 GBP

View

Retailer 7

£2,044 GBP

$2,739 USD

View

Retailer 8

£2,105 GBP

€2,686 EUR

View

Retailer 9

£2,408 GBP

A$4,964 AUD

View

Price last confirmed 9 days ago

B+

Retailer 10

£2,511 GBP

ZAR 54,345 ZAR

View

B+

Retailer 11

£2,632 GBP

$3,527 USD

View

B+

Retailer 12

£3,128 GBP

View

B+

Retailer 13

£3,497 GBP

$4,685 USD

View

B+

Retailer 14

£3,725 GBP

View

Retailer 15

£3,798 GBP

$5,089 USD

View

Retailer 16

£4,563 GBP

$6,114 USD

View

Most Expensive

Brilliant Earth

18145805A · Oct 29

£8,239 GBP

$11,040 USD

View

16 more retailers have this diamond

Prices start from £1,252 GBPSave up to £6,988 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

6.09ct Cushion

£1,252 GBP