Marquise|Lab Grown|IGI

5.09ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG831681233

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831681233

Diamond specifications and retailer prices

From £493 GBP

$661 USD

As of November 2, 2026

Save £3,531 GBP (88%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: £4,024 GBP at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 5.09ct lab-grown marquise diamond

This 5.09ct lab-grown marquise 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 LG831681233 or 831681233. Listed at 20 retailers as of November 2, 2026, with prices from £493 to £4,024, a £3,531 spread on the same certified stone. Brilliant Earth lists it at £4,024. 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

5.09

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.7°

Pavilion angle39.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG831681233

Dimensions18.25 × 8.90 × 5.43 mm

L/W Ratio2.05

Girdle conditionFaceted

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 LG831681233

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: £4,024 GBP|Low: £493 GBP|High: £4,024 GBP|Avg: £1,549 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

Retailer 18

Retailer 19

Retailer 20

November 2, 2026

Retailer 20£493 GBP

Retailer 14£537 GBP

Retailer 3£572 GBP

Retailer 2£619 GBP

Retailer 4£704 GBP

Retailer 18£859 GBP

Retailer 13£914 GBP

Retailer 11£932 GBP

Retailer 19£1,159 GBP

Retailer 6£1,162 GBP

Retailer 17£1,461 GBP

Retailer 10£1,508 GBP

Retailer 8£1,607 GBP

Retailer 7£1,836 GBP

Retailer 5£1,916 GBP

Retailer 12£1,972 GBP

Retailer 15£2,409 GBP

Retailer 16£2,723 GBP

Retailer 9£3,327 GBP

Brilliant Earth£4,024 GBP

8 data points across 20 retailers

20 retailers£493 GBP to £4,024 GBP

Cheapest Retailer

£493 GBP

$661 USD

Retailer 2

£537 GBP

$720 USD

View

Retailer 3

£572 GBP

$767 USD

View

Retailer 4

£619 GBP

View

Retailer 5

£704 GBP

$945 USD

View

Retailer 6

£859 GBP

$1,153 USD

View

Retailer 7

£914 GBP

View

B+

Retailer 8

£932 GBP

$1,251 USD

View

Retailer 9

£1,159 GBP

A$2,392 AUD

View

Retailer 10

£1,162 GBP

ZAR 25,182 ZAR

View

B+

Retailer 11

£1,461 GBP

$1,960 USD

View

B+

Retailer 12

£1,508 GBP

$2,023 USD

View

B+

Retailer 13

£1,607 GBP

$2,157 USD

View

B+

Retailer 14

£1,836 GBP

$2,464 USD

View

B+

Retailer 15

£1,916 GBP

SGD 3,474 SGD

View

B+

Retailer 16

£1,972 GBP

$2,647 USD

View

Retailer 17

£2,409 GBP

View

Retailer 18

£2,723 GBP

A$5,621 AUD

View

Retailer 19

£3,327 GBP

$4,465 USD

View

Most Expensive

Brilliant Earth

22347597A · Nov 2

£4,024 GBP

$5,400 USD

View

19 more retailers have this diamond

Prices start from £493 GBPSave up to £3,531 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

5.09ct Marquise

£493 GBP