Marquise|Lab Grown|IGI

1.69ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG793601791

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG793601791

Diamond specifications and retailer prices

From £322 GBP

$428 USD

As of October 27, 2026

Save £2,199 GBP (87%) vs most expensive(unlock to see where)

27 retailers carry this diamond

Most expensive: £2,521 GBP at Brilliant Earth · As of October 28, 2026

View at Brilliant Earth

About this 1.69ct lab-grown marquise diamond

This 1.69ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG793601791 or 793601791. Listed at 27 retailers as of October 27, 2026, with prices from £322 to £2,521, a £2,199 spread on the same certified stone. Brilliant Earth lists it at £2,521. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.69

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.6°

Pavilion angle38°

OriginLab Grown

Grading LabIGI

CertificateIGI LG793601791

Dimensions12.98 × 6.08 × 3.66 mm

L/W Ratio2.13

Girdle conditionFaceted

Culet sizePointed

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 LG793601791

Side View

Caratlytics Score

How it works →

A+

Exceptional

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 27

Current: £637 GBP|Low: £322 GBP|High: £1,635 GBP|Avg: £819 GBP|-1.0%

Retailer 1

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October 29, 2026

Retailer 9£322 GBP

Retailer 2£360 GBP

Retailer 18£373 GBP

Retailer 6£400 GBP

Retailer 22£400 GBP

Retailer 12£414 GBP

Retailer 20£508 GBP

Retailer 13£536 GBP

Retailer 10£586 GBP

Retailer 1£637 GBP

Retailer 19£655 GBP

Retailer 17£686 GBP

Retailer 16£733 GBP

Retailer 4£969 GBP

Retailer 15£970 GBP

Retailer 7£972 GBP

Retailer 14£1,204 GBP

Retailer 5£1,284 GBP

Retailer 8£1,296 GBP

Retailer 11£1,309 GBP

Retailer 21£1,395 GBP

Retailer 3£1,446 GBP

Retailer 23£1,469 GBP

22 data points across 23 retailers

27 retailers£322 GBP to £2,521 GBP

A+

Cheapest Retailer

£322 GBP

$428 USD

Retailer 2

£360 GBP

$479 USD

View

Retailer 3

£373 GBP

$496 USD

View

Final sale: no returns

Retailer 4

£400 GBP

$531 USD

View

Retailer 5

£400 GBP

$531 USD

View

Retailer 6

£414 GBP

View

Retailer 7

£508 GBP

$675 USD

View

Retailer 8

£536 GBP

$712 USD

View

Retailer 9

£586 GBP

$778 USD

View

Retailer 10

£637 GBP

€806 EUR

View

Retailer 11

£655 GBP

View

Retailer 12

£686 GBP

ZAR 14,735 ZAR

View

Retailer 13

£733 GBP

A$1,498 AUD

View

Retailer 14

£969 GBP

$1,287 USD

View

Retailer 15

£970 GBP

A$1,983 AUD

View

Price last confirmed 9 days ago

Retailer 16

£972 GBP

$1,291 USD

View

Retailer 17

£1,204 GBP

View

Price last confirmed 9 days ago

Retailer 18

£1,284 GBP

$1,706 USD

View

Retailer 19

£1,296 GBP

$1,722 USD

View

Retailer 20

£1,309 GBP

$1,739 USD

View

Retailer 21

£1,395 GBP

$1,854 USD

View

B+

Retailer 22

£1,446 GBP

$1,921 USD

View

B+

Retailer 23

£1,469 GBP

View

B+

Retailer 24

£1,495 GBP

$1,986 USD

View

B+

Retailer 25

£1,962 GBP

$2,607 USD

View

Price last confirmed 94 days ago

B+

Retailer 26

£1,991 GBP

A$4,070 AUD

View

Price last confirmed 21 days ago

Most Expensive

Brilliant Earth

18981477A · Oct 28

£2,521 GBP

$3,350 USD

View

26 more retailers have this diamond

Prices start from £322 GBPSave up to £2,199 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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