Marquise|Lab Grown|IGI

5.09ct F VVS2 Marquise Lab Grown Diamond

ID • F/VVS2 • IGI LG843645109

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843645109

Diamond specifications and retailer prices

From £605 GBP

$812 USD

As of October 30, 2026

Save £2,741 GBP (82%) vs most expensive(unlock to see where)

25 retailers carry this diamond

Most expensive: £6,878 GBP at Brilliant Earth · As of October 22, 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 VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG843645109 or 843645109. Listed at 25 retailers as of October 28, 2026, with a 453% 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

5.09

Carat

Colour

VVS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle30.5°

Pavilion angle39.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG843645109

Dimensions17.99 × 9.24 × 5.47 mm

L/W Ratio1.95

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 LG843645109

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: £6,878 GBP|Low: £605 GBP|High: £6,878 GBP|Avg: £1,718 GBP

Brilliant Earth

Retailer 2

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Retailer 25

November 2, 2026

Retailer 8£605 GBP

Retailer 3£658 GBP

Retailer 11£677 GBP

Retailer 4£701 GBP

Retailer 6£701 GBP

Retailer 2£747 GBP

Retailer 7£835 GBP

Retailer 17£985 GBP

Retailer 10£1,038 GBP

Retailer 24£1,044 GBP

Retailer 13£1,077 GBP

Retailer 21£1,405 GBP

Retailer 20£1,422 GBP

Retailer 22£1,425 GBP

Retailer 5£1,587 GBP

Retailer 16£1,669 GBP

Retailer 9£1,973 GBP

Retailer 12£2,195 GBP

Retailer 14£2,235 GBP

Retailer 15£2,428 GBP

Retailer 18£2,465 GBP

Retailer 25£2,634 GBP

Retailer 19£2,984 GBP

Retailer 23£3,346 GBP

Brilliant Earth£6,878 GBP

20 data points across 25 retailers

25 retailers£605 GBP to £3,346 GBP

Cheapest Retailer

£605 GBP

$812 USD

Retailer 2

£658 GBP

$883 USD

View

Retailer 3

£677 GBP

$909 USD

View

Final sale: no returns

Retailer 4

£701 GBP

$941 USD

View

Retailer 5

£701 GBP

$941 USD

View

Price last confirmed 16 days ago

Retailer 6

£747 GBP

View

Retailer 7

£835 GBP

$1,120 USD

View

B+

Retailer 8

£985 GBP

$1,322 USD

View

Retailer 9

£1,038 GBP

$1,393 USD

View

Retailer 10

£1,044 GBP

€1,334 EUR

View

Retailer 11

£1,077 GBP

View

Retailer 12

£1,405 GBP

$1,885 USD

View

B+

Retailer 13

£1,422 GBP

A$2,936 AUD

View

Retailer 14

£1,425 GBP

ZAR 30,901 ZAR

View

B+

Retailer 15

£1,587 GBP

$2,129 USD

View

Retailer 16

£1,669 GBP

$2,240 USD

View

Price last confirmed 9 days ago

B+

Retailer 17

£1,973 GBP

$2,647 USD

View

B+

Retailer 18

£2,195 GBP

$2,946 USD

View

B+

Retailer 19

£2,235 GBP

$2,999 USD

View

Retailer 20

£2,428 GBP

$3,258 USD

View

Retailer 21

£2,465 GBP

$3,308 USD

View

Retailer 22

£2,634 GBP

View

Retailer 23

£2,984 GBP

A$6,160 AUD

View

Retailer 24

£3,346 GBP

$4,490 USD

View

Most Expensive

Brilliant Earth

21738897A · Oct 22

£6,878 GBP

$9,230 USD

View

Price last confirmed 11 days ago

24 more retailers have this diamond

Prices start from £605 GBPSave up to £2,741 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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