Marquise|Lab Grown|IGI

1.58ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG618454374

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG618454374

Diamond specifications and retailer prices

From £577 GBP

$768 USD

As of October 28, 2026

Save £2,096 GBP (78%) vs most expensive(unlock to see where)

30 retailers carry this diamond

Most expensive: £2,673 GBP at With Clarity · As of October 28, 2026

View at With Clarity

About this 1.58ct lab-grown marquise diamond

This 1.58ct 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 LG618454374 or 618454374. Listed at 30 retailers as of October 28, 2026, with prices from £577 to £2,673, a £2,096 spread on the same certified stone. With Clarity lists it at £2,673. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.3°

Pavilion angle40.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG618454374

Dimensions12.05 × 6.07 × 3.84 mm

L/W Ratio1.99

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 LG618454374

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: Oct 28

Current: £896 GBP|Low: £462 GBP|High: £2,673 GBP|Avg: £1,330 GBP|+1.4%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

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Retailer 17

Retailer 18

Retailer 19

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Retailer 21

Retailer 22

With Clarity

October 29, 2026

Retailer 10£462 GBP

Retailer 9£572 GBP

Retailer 17£577 GBP

Retailer 19£597 GBP

Retailer 22£654 GBP

Retailer 2£731 GBP

Retailer 15£810 GBP

Retailer 12£878 GBP

Retailer 1£896 GBP

Retailer 8£909 GBP

Retailer 16£984 GBP

Retailer 18£1,332 GBP

Retailer 11£1,357 GBP

Retailer 21£1,420 GBP

Retailer 14£1,671 GBP

Retailer 6£1,826 GBP

Retailer 5£1,849 GBP

Retailer 3£1,890 GBP

Retailer 13£1,904 GBP

Retailer 4£1,917 GBP

Retailer 7£2,388 GBP

Retailer 20£2,498 GBP

With Clarity£2,673 GBP

32 data points across 23 retailers

30 retailers£577 GBP to £2,673 GBP

Retailer 1

£462 GBP

$615 USD

Price last confirmed 21 days ago

Retailer 2

£478 GBP

$637 USD

View

Price last confirmed 30 days ago

Retailer 3

£520 GBP

$693 USD

View

Price last confirmed 31 days ago

Retailer 4

£547 GBP

$729 USD

View

Price last confirmed 31 days ago

Retailer 5

£572 GBP

$762 USD

View

Price last confirmed 21 days ago

Retailer 6

£572 GBP

$762 USD

View

Price last confirmed 19 days ago

Retailer 7

£577 GBP

$768 USD

View

Final sale: no returns

Retailer 8

£597 GBP

$795 USD

View

Retailer 9

£654 GBP

HK$6,800 HKD

View

Retailer 10

£731 GBP

$973 USD

View

Retailer 11

£810 GBP

$1,078 USD

View

Retailer 12

£878 GBP

€1,114 EUR

View

Retailer 13

£896 GBP

View

Retailer 14

£909 GBP

$1,210 USD

View

Retailer 15

£984 GBP

ZAR 21,160 ZAR

View

B+

Retailer 16

£1,332 GBP

A$2,729 AUD

View

Price last confirmed 8 days ago

Retailer 17

£1,357 GBP

$1,808 USD

View

B+

Retailer 18

£1,420 GBP

$1,891 USD

View

B+

Retailer 19

£1,505 GBP

$2,004 USD

View

Price last confirmed 19 days ago

B+

Retailer 20

£1,505 GBP

$2,004 USD

View

B+

Retailer 21

£1,560 GBP

$2,078 USD

View

Price last confirmed 29 days ago

B+

Retailer 22

£1,671 GBP

View

B+

Retailer 23

£1,826 GBP

$2,432 USD

View

B+

Retailer 24

£1,849 GBP

$2,463 USD

View

B+

Retailer 25

£1,890 GBP

$2,517 USD

View

B+

Retailer 26

£1,904 GBP

SGD 3,426 SGD

View

B+

Retailer 27

£1,917 GBP

A$3,927 AUD

View

Price last confirmed 21 days ago

B+

Retailer 28

£2,388 GBP

$3,180 USD

View

Retailer 29

£2,498 GBP

View

Most Expensive

With Clarity

618454374 · Oct 28

£2,673 GBP

$3,559 USD

View

29 more retailers have this diamond

Prices start from £577 GBPSave up to £2,096 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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