Emerald|Lab Grown|IGI

3.91ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG640483476

Shape and cutting style on the report: Emerald cut

Certificate IGI LG640483476

Diamond specifications and retailer prices

From £466 GBP

$624 USD

As of November 1, 2026

Save £4,871 GBP (91%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £5,336 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 3.91ct lab-grown emerald diamond

This 3.91ct lab-grown emerald sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG640483476 or 640483476. Listed at 16 retailers as of October 31, 2026, with prices from £466 to £5,336, a £4,871 spread on the same certified stone. Brilliant Earth lists it at £5,336. 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

3.91

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33°

Pavilion angle41.3°

OriginLab Grown

Grading LabIGI

CertificateIGI LG640483476

Dimensions11.20 × 7.23 × 4.93 mm

L/W Ratio1.55

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 LG640483476

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 1

Current: £5,336 GBP|Low: £389 GBP|High: £5,448 GBP|Avg: £1,513 GBP|-2.1%

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 10£466 GBP

Retailer 4£522 GBP

Retailer 9£522 GBP

Retailer 5£578 GBP

Retailer 8£578 GBP

Retailer 2£672 GBP

Retailer 7£726 GBP

Retailer 13£763 GBP

Retailer 3£804 GBP

Retailer 15£992 GBP

Retailer 12£1,290 GBP

Retailer 14£1,843 GBP

Retailer 11£2,698 GBP

Retailer 6£4,135 GBP

Brilliant Earth£5,336 GBP

24 data points across 15 retailers

16 retailers£466 GBP to £5,336 GBP

Cheapest Retailer

£466 GBP

$624 USD

Retailer 2

£522 GBP

$699 USD

View

Final sale: no returns

Retailer 3

£522 GBP

$699 USD

View

Retailer 4

£578 GBP

$774 USD

View

Retailer 5

£578 GBP

$774 USD

View

Price last confirmed 20 days ago

Retailer 6

£672 GBP

$900 USD

View

B+

Retailer 7

£763 GBP

$1,023 USD

View

Retailer 8

£804 GBP

$1,077 USD

View

Retailer 9

£992 GBP

$1,329 USD

View

B+

Retailer 10

£1,290 GBP

$1,729 USD

View

Retailer 11

£1,331 GBP

$1,783 USD

View

Price last confirmed 34 days ago

B+

Retailer 12

£1,843 GBP

$2,470 USD

View

Retailer 13

£2,545 GBP

$3,410 USD

View

Price last confirmed 25 days ago

Retailer 14

£2,698 GBP

$3,615 USD

View

Price last confirmed 14 days ago

Retailer 15

£4,135 GBP

$5,540 USD

View

Most Expensive

Brilliant Earth

20126214A · Oct 31

£5,336 GBP

$7,150 USD

View

15 more retailers have this diamond

Prices start from £466 GBPSave up to £4,871 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

3.91ct Emerald

£466 GBP