Marquise|Lab Grown|IGI

1.35ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG809674573

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG809674573

Diamond specifications and retailer prices

From £338 GBP

As of November 4, 2026

Save £2,618 GBP (89%) vs most expensive(unlock to see where)

23 retailers carry this diamond

Most expensive: £2,956 GBP at Brilliant Earth · As of November 4, 2026

View at Brilliant Earth

About this 1.35ct lab-grown marquise diamond

This 1.35ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG809674573 or 809674573. Listed at 23 retailers as of November 4, 2026, with prices from £338 to £2,956, a £2,618 spread on the same certified stone. Brilliant Earth lists it at £2,956. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.5°

Pavilion angle40.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG809674573

Dimensions11.72 × 5.75 × 3.49 mm

L/W Ratio2.04

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 LG809674573

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4

Current: £2,956 GBP|Low: £324 GBP|High: £2,956 GBP|Avg: £1,162 GBP

Brilliant Earth

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November 5, 2026

Retailer 19£338 GBP

Retailer 5£419 GBP

Retailer 8£419 GBP

Retailer 14£526 GBP

Retailer 9£574 GBP

Retailer 4£621 GBP

Retailer 17£673 GBP

Retailer 18£717 GBP

Retailer 2£762 GBP

Retailer 16£798 GBP

Retailer 11£1,212 GBP

Retailer 7£1,217 GBP

Retailer 6£1,291 GBP

Retailer 10£1,482 GBP

Retailer 12£1,590 GBP

Retailer 15£1,931 GBP

Retailer 3£1,936 GBP

Retailer 13£2,585 GBP

Brilliant Earth£2,956 GBP

41 data points across 19 retailers

23 retailers£338 GBP to £2,956 GBP

Cheapest Retailer

£338 GBP

Retailer 2

£379 GBP

View

Final sale: no returns

Retailer 3

£379 GBP

View

Retailer 4

£419 GBP

View

Price last confirmed 20 days ago

Retailer 5

£419 GBP

View

Retailer 6

£526 GBP

View

Retailer 7

£574 GBP

View

Retailer 8

£621 GBP

View

Retailer 9

£673 GBP

View

Price last confirmed 9 days ago

Retailer 10

£717 GBP

View

Retailer 11

£762 GBP

View

Retailer 12

£798 GBP

View

B+

Retailer 13

£1,025 GBP

View

B+

Retailer 14

£1,212 GBP

View

B+

Retailer 15

£1,217 GBP

View

B+

Retailer 16

£1,291 GBP

View

Retailer 17

£1,482 GBP

View

B+

Retailer 18

£1,590 GBP

View

Retailer 19

£1,792 GBP

View

B+

Retailer 20

£1,931 GBP

View

Retailer 21

£1,936 GBP

View

Retailer 22

£2,585 GBP

View

Most Expensive

Brilliant Earth

21575115Y · Nov 4

£2,956 GBP

$3,990 USD

View

22 more retailers have this diamond

Prices start from £338 GBPSave up to £2,618 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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