Marquise|Lab Grown|IGI

1.09ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG669418955

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG669418955

Diamond specifications and retailer prices

From £175 GBP

$235 USD

As of November 1, 2026

Save £1,295 GBP (88%) vs most expensive(unlock to see where)

31 retailers carry this diamond

Most expensive: £1,470 GBP at Do Amore Diamonds · As of October 31, 2026

View at Do Amore Diamonds

About this 1.09ct lab-grown marquise diamond

This 1.09ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG669418955 or 669418955. Listed at 31 retailers as of October 31, 2026, with prices from £175 to £1,470, a £1,295 spread on the same certified stone. Do Amore Diamonds lists it at £1,470. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.6°

Pavilion angle40.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG669418955

Dimensions10.61 × 5.37 × 3.33 mm

L/W Ratio1.98

Girdle conditionFaceted

Culet sizePointed

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 LG669418955

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 1

Current: £1,470 GBP|Low: £153 GBP|High: £1,470 GBP|Avg: £583 GBP

Do Amore Diamonds

Retailer 2

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Retailer 22

November 2, 2026

Retailer 12£153 GBP

Retailer 16£175 GBP

Retailer 9£190 GBP

Retailer 7£295 GBP

Retailer 8£296 GBP

Retailer 21£353 GBP

Retailer 13£362 GBP

Retailer 5£368 GBP

Retailer 11£375 GBP

Retailer 2£388 GBP

Retailer 14£455 GBP

Retailer 18£499 GBP

Retailer 22£511 GBP

Retailer 4£612 GBP

Retailer 15£716 GBP

Retailer 10£802 GBP

Retailer 20£827 GBP

Retailer 3£840 GBP

Retailer 17£840 GBP

Retailer 6£903 GBP

Retailer 19£1,082 GBP

Do Amore Diamonds£1,470 GBP

38 data points across 22 retailers

31 retailers£175 GBP to £1,470 GBP

Retailer 1

£153 GBP

$205 USD

Price last confirmed 25 days ago

Retailer 2

£175 GBP

$235 USD

View

Final sale: no returns

Retailer 3

£182 GBP

$244 USD

View

Price last confirmed 33 days ago

Retailer 4

£190 GBP

$254 USD

View

Price last confirmed 24 days ago

Retailer 5

£190 GBP

$254 USD

View

Price last confirmed 22 days ago

Retailer 6

£211 GBP

$283 USD

View

Price last confirmed 34 days ago

Retailer 7

£223 GBP

$299 USD

View

Price last confirmed 34 days ago

Retailer 8

£295 GBP

$395 USD

View

Retailer 9

£296 GBP

HK$3,100 HKD

View

Retailer 10

£353 GBP

€450 EUR

View

Retailer 11

£362 GBP

ZAR 7,830 ZAR

View

Retailer 12

£368 GBP

$493 USD

View

Retailer 13

£375 GBP

$502 USD

View

Retailer 14

£381 GBP

View

Price last confirmed 17 days ago

Retailer 15

£388 GBP

View

Retailer 16

£455 GBP

$609 USD

View

Price last confirmed 9 days ago

B+

Retailer 17

£499 GBP

A$1,028 AUD

View

Retailer 18

£511 GBP

A$1,053 AUD

View

B+

Retailer 19

£612 GBP

$820 USD

View

B+

Retailer 20

£673 GBP

$902 USD

View

Retailer 21

£673 GBP

$902 USD

View

Price last confirmed 22 days ago

B+

Retailer 22

£716 GBP

SGD 1,296 SGD

View

Retailer 23

£802 GBP

$1,074 USD

View

Price last confirmed 32 days ago

B+

Retailer 24

£802 GBP

$1,074 USD

View

B+

Retailer 25

£827 GBP

A$1,705 AUD

View

B+

Retailer 26

£840 GBP

$1,125 USD

View

B+

Retailer 27

£840 GBP

View

Retailer 28

£848 GBP

$1,136 USD

View

Price last confirmed 47 days ago

Retailer 29

£903 GBP

$1,210 USD

View

Retailer 30

£1,082 GBP

$1,450 USD

View

Most Expensive

Do Amore Diamonds

27-F5CE09B4A · Oct 31

£1,470 GBP

$1,970 USD

View

30 more retailers have this diamond

Prices start from £175 GBPSave up to £1,295 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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