Emerald|Lab Grown|IGI

20.04ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG809674299

Shape and cutting style on the report: Emerald cut

Certificate IGI LG809674299

Diamond specifications and retailer prices

From £3,894 GBP

$5,226 USD

As of November 2, 2026

Save £15,147 GBP (80%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: £28,302 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 20.04ct lab-grown emerald diamond

This 20.04ct lab-grown emerald 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 LG809674299 or 809674299. Listed at 17 retailers as of November 2, 2026, with a 389% 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

20.04

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle32.6°

Pavilion angle40°

OriginLab Grown

Grading LabIGI

CertificateIGI LG809674299

Dimensions18.98 × 12.73 × 7.97 mm

L/W Ratio1.49

Culet sizeLarge

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 LG809674299

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 2

Current: £28,302 GBP|Low: £3,789 GBP|High: £28,302 GBP|Avg: £8,423 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

Retailer 16

Retailer 17

November 2, 2026

Retailer 13£3,894 GBP

Retailer 7£4,081 GBP

Retailer 3£4,361 GBP

Retailer 15£4,517 GBP

Retailer 5£4,531 GBP

Retailer 16£4,621 GBP

Retailer 9£5,095 GBP

Retailer 4£5,362 GBP

Retailer 2£5,485 GBP

Retailer 10£5,787 GBP

Retailer 8£6,174 GBP

Retailer 12£6,979 GBP

Retailer 14£8,154 GBP

Retailer 11£8,594 GBP

Retailer 6£16,131 GBP

Retailer 17£19,041 GBP

Brilliant Earth£28,302 GBP

28 data points across 17 retailers

17 retailers£3,894 GBP to £19,041 GBP

Cheapest Retailer

£3,894 GBP

$5,226 USD

Retailer 2

£4,081 GBP

$5,477 USD

View

B+

Retailer 3

£4,361 GBP

$5,852 USD

View

Final sale: no returns

B+

Retailer 4

£4,517 GBP

$6,062 USD

View

B+

Retailer 5

£4,531 GBP

$6,080 USD

View

B+

Retailer 6

£4,621 GBP

$6,201 USD

View

Retailer 7

£5,095 GBP

$6,837 USD

View

Price last confirmed 21 days ago

B+

Retailer 8

£5,362 GBP

$7,196 USD

View

B+

Retailer 9

£5,485 GBP

$7,360 USD

View

B+

Retailer 10

£5,787 GBP

View

Retailer 11

£6,174 GBP

$8,285 USD

View

Price last confirmed 15 days ago

B+

Retailer 12

£6,979 GBP

$9,366 USD

View

B+

Retailer 13

£8,154 GBP

€10,421 EUR

View

Retailer 14

£8,594 GBP

A$17,743 AUD

View

Retailer 15

£16,131 GBP

$21,647 USD

View

Retailer 16

£19,041 GBP

$25,552 USD

View

Most Expensive

Brilliant Earth

20784299A · Oct 31

£28,302 GBP

$37,980 USD

View

Price under review

16 more retailers have this diamond

Prices start from £3,894 GBPSave up to £15,147 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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