Cushion|Lab Grown|IGI

12.09ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG652471010

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG652471010

Diamond specifications and retailer prices

From £3,845 GBP

$5,160 USD

As of November 3, 2026

Save £12,016 GBP (76%) vs most expensive(unlock to see where)

13 retailers carry this diamond

Most expensive: £21,230 GBP at Do Amore Diamonds · As of November 2, 2026

View at Do Amore Diamonds

About this 12.09ct lab-grown cushion diamond

This 12.09ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG652471010 or 652471010. Listed at 13 retailers as of November 2, 2026, with a 313% 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

12.09

Carat

Colour

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle40°

Pavilion angle31.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG652471010

Dimensions11.52 × 11.52 × 7.84 mm

L/W Ratio1.00

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG652471010

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 3

Current: £21,230 GBP|Low: £2,563 GBP|High: £21,230 GBP|Avg: £7,617 GBP|+1.5%

Do Amore Diamonds

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

November 3, 2026

Retailer 7£2,663 GBP

Retailer 16£3,425 GBP

Retailer 6£3,844 GBP

Retailer 12£3,845 GBP

Retailer 9£3,867 GBP

Retailer 15£5,302 GBP

Retailer 2£5,355 GBP

Retailer 17£5,843 GBP

Retailer 10£5,946 GBP

Retailer 4£5,996 GBP

Retailer 13£6,567 GBP

Retailer 3£7,223 GBP

Retailer 11£8,035 GBP

Retailer 5£15,217 GBP

Retailer 14£15,861 GBP

Retailer 8£17,601 GBP

Do Amore Diamonds£21,230 GBP

28 data points across 17 retailers

13 retailers£3,845 GBP to £15,861 GBP

Retailer 1

£3,844 GBP

$5,158 USD

Price last confirmed 21 days ago

Retailer 2

£3,845 GBP

$5,160 USD

View

Retailer 3

£5,302 GBP

$7,115 USD

View

Price last confirmed 13 days ago

B+

Retailer 4

£5,355 GBP

View

B+

Retailer 5

£5,843 GBP

$7,841 USD

View

B+

Retailer 6

£5,946 GBP

$7,979 USD

View

B+

Retailer 7

£5,996 GBP

View

B+

Retailer 8

£6,567 GBP

ZAR 142,358 ZAR

View

Retailer 9

£7,223 GBP

$9,693 USD

View

Retailer 10

£8,035 GBP

A$16,588 AUD

View

Retailer 11

£15,217 GBP

$20,420 USD

View

Retailer 12

£15,861 GBP

$21,285 USD

View

Most Expensive

Do Amore Diamonds

36-2010436 · Nov 2

£21,230 GBP

$28,490 USD

View

Price under review

12 more retailers have this diamond

Prices start from £3,845 GBPSave up to £12,016 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

12.09ct Cushion

£3,845 GBP