Marquise|Lab Grown|IGI

1.56ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG633465518

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG633465518

Diamond specifications and retailer prices

From £569 GBP

$758 USD

As of October 28, 2026

Save £2,070 GBP (78%) vs most expensive(unlock to see where)

32 retailers carry this diamond

Most expensive: £2,639 GBP at With Clarity · As of October 28, 2026

View at With Clarity

About this 1.56ct lab-grown marquise diamond

This 1.56ct 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 LG633465518 or 633465518. Listed at 32 retailers as of October 28, 2026, with prices from £569 to £2,639, a £2,070 spread on the same certified stone. With Clarity lists it at £2,639. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.4°

Pavilion angle41.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG633465518

Dimensions11.94 × 6.13 × 3.86 mm

L/W Ratio1.95

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG633465518

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 28

Current: £882 GBP|Low: £456 GBP|High: £2,639 GBP|Avg: £1,336 GBP|-3.6%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

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Retailer 10

Retailer 11

Retailer 12

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Retailer 19

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Retailer 21

Retailer 22

Retailer 23

Retailer 24

With Clarity

October 29, 2026

Retailer 14£456 GBP

Retailer 13£565 GBP

Retailer 19£569 GBP

Retailer 20£589 GBP

Retailer 3£654 GBP

Retailer 4£724 GBP

Retailer 17£800 GBP

Retailer 12£867 GBP

Retailer 1£882 GBP

Retailer 10£888 GBP

Retailer 18£972 GBP

Retailer 22£985 GBP

Retailer 23£1,325 GBP

Retailer 15£1,340 GBP

Retailer 2£1,403 GBP

Retailer 11£1,648 GBP

Retailer 24£1,798 GBP

Retailer 8£1,804 GBP

Retailer 7£1,828 GBP

Retailer 5£1,872 GBP

Retailer 16£1,882 GBP

Retailer 6£1,890 GBP

Retailer 9£2,358 GBP

Retailer 21£2,458 GBP

With Clarity£2,639 GBP

30 data points across 25 retailers

32 retailers£569 GBP to £2,639 GBP

Retailer 1

£456 GBP

$607 USD

Price last confirmed 21 days ago

Retailer 2

£472 GBP

$629 USD

View

Price last confirmed 30 days ago

Retailer 3

£514 GBP

$685 USD

View

Price last confirmed 31 days ago

Retailer 4

£541 GBP

$720 USD

View

Price last confirmed 31 days ago

Retailer 5

£565 GBP

$753 USD

View

Price last confirmed 21 days ago

Retailer 6

£565 GBP

$753 USD

View

Price last confirmed 19 days ago

Retailer 7

£569 GBP

$758 USD

View

Final sale: no returns

Retailer 8

£589 GBP

$785 USD

View

Retailer 9

£654 GBP

HK$6,800 HKD

View

Retailer 10

£724 GBP

$964 USD

View

Retailer 11

£800 GBP

$1,065 USD

View

Retailer 12

£867 GBP

€1,100 EUR

View

Retailer 13

£882 GBP

View

Retailer 14

£888 GBP

$1,183 USD

View

Retailer 15

£972 GBP

ZAR 20,904 ZAR

View

Retailer 16

£985 GBP

A$2,018 AUD

View

Retailer 17

£1,325 GBP

A$2,714 AUD

View

Price last confirmed 9 days ago

Retailer 18

£1,340 GBP

$1,785 USD

View

B+

Retailer 19

£1,403 GBP

$1,868 USD

View

Retailer 20

£1,487 GBP

$1,980 USD

View

Price last confirmed 19 days ago

B+

Retailer 21

£1,487 GBP

$1,980 USD

View

Retailer 22

£1,542 GBP

$2,053 USD

View

Price last confirmed 29 days ago

Retailer 23

£1,648 GBP

View

Price last confirmed 21 days ago

B+

Retailer 24

£1,798 GBP

$2,395 USD

View

B+

Retailer 25

£1,804 GBP

$2,402 USD

View

B+

Retailer 26

£1,828 GBP

$2,434 USD

View

B+

Retailer 27

£1,872 GBP

$2,493 USD

View

B+

Retailer 28

£1,882 GBP

SGD 3,387 SGD

View

Retailer 29

£1,890 GBP

A$3,872 AUD

View

Price last confirmed 21 days ago

B+

Retailer 30

£2,358 GBP

$3,140 USD

View

Retailer 31

£2,458 GBP

View

Most Expensive

With Clarity

633465518 · Oct 28

£2,639 GBP

$3,514 USD

View

31 more retailers have this diamond

Prices start from £569 GBPSave up to £2,070 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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