Marquise|Lab Grown|IGI

1.51ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG644456133

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG644456133

Diamond specifications and retailer prices

From €587 EUR

$658 USD

As of November 1, 2026

Save €2,238 EUR (79%) vs most expensive(unlock to see where)

30 retailers carry this diamond

Most expensive: €2,825 EUR at MOH London · As of November 3, 2026

View at MOH London

About this 1.51ct lab-grown marquise diamond

This 1.51ct 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 LG644456133 or 644456133. Listed at 30 retailers as of November 1, 2026, with prices from €587 to €2,825, a €2,238 spread on the same certified stone. MOH London lists it at €2,825. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.1°

Pavilion angle40.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG644456133

Dimensions11.68 × 5.92 × 3.77 mm

L/W Ratio1.97

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 LG644456133

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: Nov 1

Current: €2,825 EUR|Low: €525 EUR|High: €2,859 EUR|Avg: €1,501 EUR|-1.2%

MOH London

Retailer 2

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Retailer 24

November 3, 2026

Retailer 11€525 EUR

Retailer 22€587 EUR

Retailer 10€651 EUR

Retailer 4€753 EUR

Retailer 24€767 EUR

Retailer 5€839 EUR

Retailer 16€920 EUR

Retailer 9€995 EUR

Retailer 21€999 EUR

Retailer 2€1,017 EUR

Retailer 13€1,118 EUR

Retailer 19€1,516 EUR

Retailer 12€1,540 EUR

Retailer 3€1,615 EUR

Retailer 17€1,957 EUR

Retailer 8€2,077 EUR

Retailer 7€2,106 EUR

Retailer 23€2,126 EUR

Retailer 18€2,148 EUR

Retailer 14€2,167 EUR

Retailer 6€2,170 EUR

Retailer 20€2,202 EUR

Retailer 15€2,274 EUR

MOH London€2,825 EUR

36 data points across 24 retailers

30 retailers€587 EUR to €2,825 EUR

Retailer 1

€525 EUR

$589 USD

Price last confirmed 25 days ago

Retailer 2

€544 EUR

$610 USD

View

Price last confirmed 34 days ago

Retailer 3

€587 EUR

$658 USD

View

Final sale: no returns

Retailer 4

€609 EUR

$683 USD

View

Price last confirmed 35 days ago

Retailer 5

€651 EUR

$730 USD

View

Price last confirmed 25 days ago

Retailer 6

€651 EUR

$730 USD

View

Price last confirmed 23 days ago

Retailer 7

€666 EUR

$747 USD

View

Price last confirmed 35 days ago

Retailer 8

€753 EUR

HK$6,600 HKD

View

Retailer 9

€767 EUR

$860 USD

View

Retailer 10

€839 EUR

$941 USD

View

Retailer 11

€920 EUR

$1,032 USD

View

Retailer 12

€995 EUR

$1,116 USD

View

Retailer 13

€999 EUR

View

Retailer 14

€1,017 EUR

£899 GBP

View

Retailer 15

€1,118 EUR

ZAR 20,266 ZAR

View

B+

Retailer 16

€1,516 EUR

A$2,616 AUD

View

Retailer 17

€1,540 EUR

$1,727 USD

View

Price last confirmed 9 days ago

B+

Retailer 18

€1,615 EUR

$1,811 USD

View

Retailer 19

€1,712 EUR

$1,920 USD

View

Price last confirmed 23 days ago

B+

Retailer 20

€1,712 EUR

$1,920 USD

View

Retailer 21

€1,774 EUR

$1,990 USD

View

Price last confirmed 33 days ago

B+

Retailer 22

€2,077 EUR

$2,330 USD

View

B+

Retailer 23

€2,106 EUR

$2,362 USD

View

B+

Retailer 24

€2,126 EUR

$2,385 USD

View

B+

Retailer 25

€2,148 EUR

A$3,707 AUD

View

B+

Retailer 26

€2,167 EUR

SGD 3,285 SGD

View

B+

Retailer 27

€2,170 EUR

$2,434 USD

View

B+

Retailer 28

€2,202 EUR

$2,470 USD

View

Retailer 29

€2,274 EUR

$2,551 USD

View

Most Expensive

MOH London

LG644456133 · Nov 3

€2,825 EUR

£2,495 GBP

View

29 more retailers have this diamond

Prices start from €587 EURSave up to €2,238 EUR

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.

Where to buy this spec

See every retailer carrying 1.51ct E IF marquise lab-grown

Ranked by inventory count, with return policy, certs, and trust signals.

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