Marquise|Lab Grown|IGI

1.56ct F IF Marquise Lab Grown Diamond

ID • F/IF • IGI LG628451202

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG628451202

Diamond specifications and retailer prices

From €967 EUR

A$1,668 AUD

As of November 2, 2026

Save €1,084 EUR (53%) vs most expensive(unlock to see where)

6 retailers carry this diamond

Most expensive: €2,051 EUR at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG628451202 or 628451202. Listed at 6 retailers as of October 31, 2026, with prices from €967 to €2,051, a €1,084 spread on the same certified stone. Brilliant Earth lists it at €2,051. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.4°

Pavilion angle41.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG628451202

Dimensions11.83 × 6.13 × 3.84 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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG628451202

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 2

Current: €2,051 EUR|Low: €606 EUR|High: €2,946 EUR|Avg: €1,445 EUR

Brilliant Earth

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October 21, 2026

Retailer 16€606 EUR

Retailer 11€730 EUR

Retailer 4€785 EUR

Retailer 18€859 EUR

Retailer 5€900 EUR

Retailer 2€967 EUR

Retailer 14€998 EUR

Retailer 7€1,043 EUR

Retailer 13€1,045 EUR

Retailer 3€1,128 EUR

Retailer 9€1,509 EUR

Retailer 8€1,590 EUR

Retailer 6€1,821 EUR

Retailer 12€2,034 EUR

Brilliant Earth€2,051 EUR

Retailer 17€2,120 EUR

Retailer 10€2,170 EUR

Retailer 19€2,241 EUR

Retailer 15€2,946 EUR

12 data points across 19 retailers

6 retailers€967 EUR to €2,051 EUR

Retailer 1

€662 EUR

$743 USD

Price last confirmed 38 days ago

Retailer 2

€730 EUR

HK$6,400 HKD

View

Price last confirmed 59 days ago

Retailer 3

€967 EUR

A$1,668 AUD

View

Retailer 4

€1,590 EUR

$1,783 USD

View

Price last confirmed 91 days ago

Retailer 5

€2,034 EUR

A$3,509 AUD

View

Price last confirmed 37 days ago

Most Expensive

B+

Brilliant Earth

14067436A · Oct 31

€2,051 EUR

$2,300 USD

View

5 more retailers have this diamond

Prices start from €967 EURSave up to €1,084 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.

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1.56ct Marquise

€967 EUR