Emerald|Lab Grown|IGI

20.25ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG762559593

Shape and cutting style on the report: Emerald cut

Certificate IGI LG762559593

Diamond specifications and retailer prices

From £5,542 GBP

$7,425 USD

As of November 2, 2026

Save £14,077 GBP (72%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £28,644 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 20.25ct lab-grown emerald diamond

This 20.25ct 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 LG762559593 or 762559593. Listed at 16 retailers as of October 31, 2026, with a 254% 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

20.25

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.1°

Pavilion angle37.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG762559593

Dimensions18.40 × 12.59 × 8.11 mm

L/W Ratio1.46

Culet sizeLong

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 LG762559593

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2

Current: £28,644 GBP|Low: £4,923 GBP|High: £29,764 GBP|Avg: £11,735 GBP|-3.8%

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

November 1, 2026

Retailer 4£4,923 GBP

Retailer 5£5,099 GBP

Retailer 8£5,542 GBP

Retailer 10£6,123 GBP

Retailer 11£6,169 GBP

Retailer 6£6,384 GBP

Retailer 9£7,510 GBP

Retailer 7£8,413 GBP

Retailer 2£9,740 GBP

Retailer 13£14,185 GBP

Retailer 12£17,845 GBP

Retailer 3£19,619 GBP

Brilliant Earth£28,644 GBP

42 data points across 13 retailers

16 retailers£5,542 GBP to £19,619 GBP

Retailer 1

£5,429 GBP

$7,274 USD

Price last confirmed 33 days ago

B+

Retailer 2

£5,542 GBP

$7,425 USD

View

B+

Retailer 3

£6,123 GBP

HK$64,100 HKD

View

B+

Retailer 4

£6,169 GBP

$8,266 USD

View

Retailer 5

£6,211 GBP

$8,322 USD

View

Price last confirmed 33 days ago

B+

Retailer 6

£6,384 GBP

View

Retailer 7

£7,476 GBP

$10,017 USD

View

Price last confirmed 33 days ago

B+

Retailer 8

£7,510 GBP

$10,062 USD

View

Retailer 9

£8,413 GBP

€10,736 EUR

View

Retailer 10

£9,740 GBP

A$20,078 AUD

View

Retailer 11

£14,185 GBP

$19,006 USD

View

Price last confirmed 24 days ago

Retailer 12

£17,845 GBP

$23,911 USD

View

Retailer 13

£19,619 GBP

$26,287 USD

View

Retailer 14

£28,644 GBP

$38,380 USD

View

Price under review

Retailer 15

£28,644 GBP

$38,380 USD

View

Price under review

Most Expensive

Brilliant Earth

17309010A · Oct 31

£28,644 GBP

$38,380 USD

View

Price under review

15 more retailers have this diamond

Prices start from £5,542 GBPSave up to £14,077 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

B+

20.25ct Emerald

£5,542 GBP