Marquise|Lab Grown|IGI

1.57ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG758554058

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG758554058

Diamond specifications and retailer prices

From £385 GBP

$516 USD

As of November 2, 2026

Save £1,727 GBP (82%) vs most expensive(unlock to see where)

26 retailers carry this diamond

Most expensive: £2,112 GBP at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 1.57ct lab-grown marquise diamond

This 1.57ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG758554058 or 758554058. Listed at 26 retailers as of October 31, 2026, with prices from £385 to £2,112, a £1,727 spread on the same certified stone. Brilliant Earth lists it at £2,112. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.4°

Pavilion angle40.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG758554058

Dimensions11.59 × 6.00 × 3.87 mm

L/W Ratio1.93

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 LG758554058

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: £2,112 GBP|Low: £385 GBP|High: £2,276 GBP|Avg: £995 GBP

Brilliant Earth

Retailer 2

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November 2, 2026

Retailer 19£385 GBP

Retailer 7£431 GBP

Retailer 20£478 GBP

Retailer 14£489 GBP

Retailer 13£505 GBP

Retailer 17£515 GBP

Retailer 8£640 GBP

Retailer 3£644 GBP

Retailer 15£740 GBP

Retailer 21£820 GBP

Retailer 2£824 GBP

Retailer 5£862 GBP

Retailer 18£1,112 GBP

Retailer 11£1,121 GBP

Retailer 4£1,256 GBP

Retailer 10£1,388 GBP

Retailer 6£1,554 GBP

Retailer 9£1,644 GBP

Retailer 12£1,779 GBP

Retailer 16£1,994 GBP

Brilliant Earth£2,112 GBP

24 data points across 21 retailers

26 retailers£385 GBP to £2,112 GBP

Cheapest Retailer

£385 GBP

$516 USD

Retailer 2

£419 GBP

$561 USD

View

Price last confirmed 25 days ago

Retailer 3

£431 GBP

$577 USD

View

Final sale: no returns

Retailer 4

£469 GBP

$629 USD

View

Price last confirmed 34 days ago

Retailer 5

£478 GBP

$640 USD

View

Retailer 6

£489 GBP

$655 USD

View

Price last confirmed 16 days ago

Retailer 7

£489 GBP

$655 USD

View

Price last confirmed 24 days ago

Retailer 8

£505 GBP

View

Retailer 9

£515 GBP

$690 USD

View

Retailer 10

£583 GBP

HK$6,100 HKD

View

Price last confirmed 59 days ago

Retailer 11

£640 GBP

$858 USD

View

Retailer 12

£644 GBP

$863 USD

View

Retailer 13

£740 GBP

View

Retailer 14

£820 GBP

€1,046 EUR

View

Retailer 15

£824 GBP

ZAR 17,834 ZAR

View

Retailer 16

£862 GBP

$1,155 USD

View

Retailer 17

£1,112 GBP

A$2,293 AUD

View

B+

Retailer 18

£1,121 GBP

$1,502 USD

View

Retailer 19

£1,256 GBP

$1,683 USD

View

Retailer 20

£1,366 GBP

$1,830 USD

View

Price last confirmed 32 days ago

B+

Retailer 21

£1,388 GBP

View

B+

Retailer 22

£1,554 GBP

$2,082 USD

View

B+

Retailer 23

£1,644 GBP

$2,203 USD

View

B+

Retailer 24

£1,779 GBP

$2,384 USD

View

B+

Retailer 25

£1,994 GBP

View

Most Expensive

Brilliant Earth

18182307A · Oct 31

£2,112 GBP

$2,830 USD

View

25 more retailers have this diamond

Prices start from £385 GBPSave up to £1,727 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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