Marquise|Lab Grown|IGI

0.57ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG817625563

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817625563

Diamond specifications and retailer prices

From £236 GBP

$316 USD

As of October 30, 2026

Save £985 GBP (81%) vs most expensive(unlock to see where)

20 retailers carry this diamond

Most expensive: £1,221 GBP at Riddles Jewelry · As of October 29, 2026

View at Riddles Jewelry

About this 0.57ct lab-grown marquise diamond

This 0.57ct lab-grown marquise sits in the half to three-quarter carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG817625563 or 817625563. Listed at 20 retailers as of October 29, 2026, with prices from £236 to £1,221, a £985 spread on the same certified stone. Riddles Jewelry lists it at £1,221. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.57

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.2°

Pavilion angle40.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG817625563

Dimensions8.89 × 4.24 × 2.66 mm

L/W Ratio2.10

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 LG817625563

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: Oct 30

Current: £522 GBP|Low: £190 GBP|High: £1,187 GBP|Avg: £595 GBP|+3.2%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

October 30, 2026

Retailer 6£291 GBP

Retailer 9£293 GBP

Retailer 4£456 GBP

Retailer 8£464 GBP

Retailer 1£522 GBP

Retailer 3£529 GBP

Retailer 7£594 GBP

Retailer 10£627 GBP

Retailer 2£1,031 GBP

Retailer 5£1,174 GBP

42 data points across 10 retailers

20 retailers£236 GBP to £1,221 GBP

Cheapest Retailer

£236 GBP

$316 USD

Retailer 2

£274 GBP

$367 USD

View

Retailer 3

£289 GBP

$387 USD

View

Price last confirmed 36 days ago

Retailer 4

£291 GBP

$390 USD

View

Final sale: no returns

Retailer 5

£293 GBP

$392 USD

View

Retailer 6

£293 GBP

$392 USD

View

Retailer 7

£317 GBP

$425 USD

View

B+

Retailer 8

£456 GBP

€582 EUR

View

B+

Retailer 9

£464 GBP

$622 USD

View

B+

Retailer 10

£522 GBP

View

B+

Retailer 11

£529 GBP

ZAR 11,459 ZAR

View

Retailer 12

£594 GBP

$796 USD

View

Retailer 13

£627 GBP

$840 USD

View

Retailer 14

£941 GBP

$1,261 USD

View

Retailer 15

£975 GBP

$1,306 USD

View

Retailer 16

£1,034 GBP

CA$1,925 CAD

View

Retailer 17

£1,052 GBP

$1,409 USD

View

Retailer 18

£1,168 GBP

$1,565 USD

View

Retailer 19

£1,174 GBP

View

Most Expensive

Riddles Jewelry

1966373588 · Oct 29

£1,221 GBP

$1,636 USD

View

19 more retailers have this diamond

Prices start from £236 GBPSave up to £985 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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