Princess|Lab Grown|IGI

4.09ct F VS1 Princess Lab Grown Diamond

ID • F/VS1 • IGI LG787665112

Shape and cutting style on the report: Princess cut

Certificate IGI LG787665112

Diamond specifications and retailer prices

From £390 GBP

As of October 30, 2026

Save £3,491 GBP (90%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: £3,881 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 4.09ct lab-grown princess diamond

This 4.09ct lab-grown princess 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 LG787665112 or 787665112. Listed at 18 retailers as of October 30, 2026, with prices from £390 to £3,881, a £3,491 spread on the same certified stone. Brilliant Earth lists it at £3,881. 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

4.09

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle42.8°

Pavilion angle38.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG787665112

Dimensions8.70 × 8.67 × 6.25 mm

L/W Ratio1.00

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 LG787665112

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 30

Current: £3,881 GBP|Low: £390 GBP|High: £5,560 GBP|Avg: £1,508 GBP|-30.2%

Brilliant Earth

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October 31, 2026

Retailer 12£390 GBP

Retailer 6£421 GBP

Retailer 8£506 GBP

Retailer 3£567 GBP

Retailer 17£625 GBP

Retailer 14£712 GBP

Retailer 10£776 GBP

Retailer 16£927 GBP

Retailer 13£933 GBP

Retailer 4£1,175 GBP

Retailer 11£1,202 GBP

Retailer 7£1,476 GBP

Retailer 9£1,517 GBP

Retailer 5£1,627 GBP

Retailer 15£1,955 GBP

Retailer 2£1,958 GBP

Brilliant Earth£3,881 GBP

41 data points across 17 retailers

18 retailers£390 GBP to £3,881 GBP

Cheapest Retailer

£390 GBP

Retailer 2

£421 GBP

$564 USD

View

Retailer 3

£506 GBP

HK$5,300 HKD

View

Retailer 4

£567 GBP

$760 USD

View

B+

Retailer 5

£625 GBP

$838 USD

View

Retailer 6

£712 GBP

€908 EUR

View

Retailer 7

£776 GBP

View

Retailer 8

£927 GBP

ZAR 20,066 ZAR

View

Retailer 9

£933 GBP

A$1,924 AUD

View

B+

Retailer 10

£1,175 GBP

$1,575 USD

View

B+

Retailer 11

£1,202 GBP

$1,611 USD

View

B+

Retailer 12

£1,476 GBP

SGD 2,672 SGD

View

B+

Retailer 13

£1,517 GBP

$2,032 USD

View

B+

Retailer 14

£1,627 GBP

$2,180 USD

View

B+

Retailer 15

£1,955 GBP

View

B+

Retailer 16

£1,958 GBP

A$4,037 AUD

View

Retailer 17

£2,142 GBP

$2,870 USD

View

Price last confirmed 77 days ago

Most Expensive

Brilliant Earth

22315822A · Oct 31

£3,881 GBP

$5,200 USD

View

17 more retailers have this diamond

Prices start from £390 GBPSave up to £3,491 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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4.09ct Princess

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