Marquise|Lab Grown|IGI

2.55ct F VVS1 Marquise Lab Grown Diamond

EX • F/VVS1 • IGI LG843696718

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843696718

Diamond specifications and retailer prices

From £365 GBP

$490 USD

As of November 2, 2026

Save £2,310 GBP (86%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: £2,675 GBP at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 2.55ct lab-grown marquise diamond

This 2.55ct lab-grown marquise sits in the two to three carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG843696718 or 843696718. Listed at 19 retailers as of October 30, 2026, with prices from £365 to £2,675, a £2,310 spread on the same certified stone. Brilliant Earth lists it at £2,675. 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

2.55

Carat

Colour

VVS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle32.7°

Pavilion angle39.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG843696718

Dimensions14.52 × 7.14 × 4.27 mm

L/W Ratio2.03

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG843696718

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: £2,675 GBP|Low: £365 GBP|High: £3,025 GBP|Avg: £1,042 GBP|-11.6%

Brilliant Earth

Retailer 2

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November 2, 2026

Retailer 3£365 GBP

Retailer 9£409 GBP

Retailer 20£431 GBP

Retailer 6£452 GBP

Retailer 8£452 GBP

Retailer 7£555 GBP

Retailer 12£607 GBP

Retailer 5£713 GBP

Retailer 2£753 GBP

Retailer 17£757 GBP

Retailer 19£952 GBP

Retailer 14£991 GBP

Retailer 15£1,005 GBP

Retailer 4£1,191 GBP

Retailer 11£1,476 GBP

Retailer 13£1,673 GBP

Retailer 10£1,693 GBP

Retailer 16£1,899 GBP

Retailer 18£2,258 GBP

Brilliant Earth£2,675 GBP

21 data points across 20 retailers

19 retailers£365 GBP to £2,675 GBP

Cheapest Retailer

£365 GBP

$490 USD

Retailer 2

£409 GBP

$549 USD

View

Retailer 3

£452 GBP

$607 USD

View

Price last confirmed 17 days ago

Retailer 4

£452 GBP

$607 USD

View

Retailer 5

£555 GBP

$745 USD

View

Retailer 6

£607 GBP

$815 USD

View

Retailer 7

£713 GBP

$957 USD

View

Retailer 8

£753 GBP

View

Retailer 9

£757 GBP

€967 EUR

View

Retailer 10

£952 GBP

$1,277 USD

View

B+

Retailer 11

£991 GBP

$1,330 USD

View

B+

Retailer 12

£1,005 GBP

A$2,075 AUD

View

B+

Retailer 13

£1,191 GBP

$1,598 USD

View

B+

Retailer 14

£1,476 GBP

$1,980 USD

View

Retailer 15

£1,673 GBP

A$3,454 AUD

View

Retailer 16

£1,693 GBP

$2,272 USD

View

Retailer 17

£1,899 GBP

View

Retailer 18

£2,258 GBP

$3,030 USD

View

Most Expensive

Brilliant Earth

22169142A · Oct 30

£2,675 GBP

$3,590 USD

View

18 more retailers have this diamond

Prices start from £365 GBPSave up to £2,310 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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