Marquise|Lab Grown|IGI

1.35ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG800622153

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800622153

Diamond specifications and retailer prices

From £290 GBP

As of November 4, 2026

Save £1,465 GBP (83%) vs most expensive(unlock to see where)

24 retailers carry this diamond

Most expensive: £1,756 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 LG800622153 or 800622153. Listed at 24 retailers as of November 4, 2026, with prices from £290 to £1,756, a £1,465 spread on the same certified stone. Brilliant Earth lists it at £1,756. 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 angle33.5°

Pavilion angle40.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG800622153

Dimensions11.59 × 5.76 × 3.61 mm

L/W Ratio2.01

Girdle conditionFaceted

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG800622153

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: £1,756 GBP|Low: £290 GBP|High: £2,622 GBP|Avg: £903 GBP|-33.1%

Brilliant Earth

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November 5, 2026

Retailer 22£290 GBP

Retailer 8£324 GBP

Retailer 18£325 GBP

Retailer 6£360 GBP

Retailer 10£398 GBP

Retailer 7£470 GBP

Retailer 19£490 GBP

Retailer 21£536 GBP

Retailer 2£584 GBP

Retailer 12£619 GBP

Retailer 17£621 GBP

Retailer 4£727 GBP

Retailer 16£813 GBP

Retailer 20£864 GBP

Retailer 3£988 GBP

Retailer 14£1,005 GBP

Retailer 9£1,145 GBP

Retailer 11£1,157 GBP

Retailer 5£1,184 GBP

Retailer 23£1,337 GBP

Retailer 13£1,402 GBP

Retailer 15£1,722 GBP

Brilliant Earth£1,756 GBP

37 data points across 23 retailers

24 retailers£290 GBP to £1,756 GBP

Cheapest Retailer

£290 GBP

Retailer 2

£324 GBP

View

Final sale: no returns

Retailer 3

£325 GBP

View

Retailer 4

£360 GBP

View

Retailer 5

£390 GBP

View

Price last confirmed 11 days ago

Retailer 6

£398 GBP

View

Retailer 7

£470 GBP

View

Retailer 8

£490 GBP

View

Retailer 9

£536 GBP

View

Retailer 10

£584 GBP

View

Retailer 11

£619 GBP

View

Price last confirmed 11 days ago

Retailer 12

£621 GBP

View

Retailer 13

£727 GBP

View

B+

Retailer 14

£813 GBP

View

B+

Retailer 15

£864 GBP

View

B+

Retailer 16

£988 GBP

View

Retailer 17

£1,005 GBP

View

Price last confirmed 15 days ago

B+

Retailer 18

£1,145 GBP

View

B+

Retailer 19

£1,157 GBP

View

B+

Retailer 20

£1,184 GBP

View

Retailer 21

£1,337 GBP

View

B+

Retailer 22

£1,402 GBP

View

Retailer 23

£1,722 GBP

View

Price last confirmed 8 days ago

Most Expensive

Brilliant Earth

20322764A · Nov 4

£1,756 GBP

$2,370 USD

View

23 more retailers have this diamond

Prices start from £290 GBPSave up to £1,465 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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