Marquise|Lab Grown|IGI

2.55ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG780664158

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780664158

Diamond specifications and retailer prices

From €2,436 EUR

$2,722 USD

As of October 31, 2026

Save €10,912 EUR (82%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: €13,348 EUR at With Clarity · As of November 1, 2026

View at With Clarity

About this 2.55ct lab-grown marquise diamond

This 2.55ct lab-grown marquise sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780664158 or 780664158. Listed at 16 retailers as of October 31, 2026, with prices from €2,436 to €13,348, a €10,912 spread on the same certified stone. With Clarity lists it at €13,348. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.55

Carat

Color

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle36.9°

Pavilion angle39.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG780664158

Dimensions13.79 × 7.10 × 4.49 mm

L/W Ratio1.94

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

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG780664158

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 31

Current: €4,216 EUR|Low: €2,239 EUR|High: €16,889 EUR|Avg: €6,962 EUR|-1.3%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

With Clarity

November 1, 2026

Retailer 6€2,239 EUR

Retailer 4€2,436 EUR

Retailer 2€3,057 EUR

Retailer 1€4,216 EUR

Retailer 10€4,283 EUR

Retailer 11€4,548 EUR

Retailer 5€5,181 EUR

Retailer 15€5,513 EUR

Retailer 8€6,051 EUR

Retailer 13€8,542 EUR

Retailer 9€8,656 EUR

Retailer 14€8,809 EUR

Retailer 3€9,039 EUR

Retailer 12€9,734 EUR

Retailer 7€11,962 EUR

With Clarity€13,348 EUR

25 data points across 16 retailers

16 retailers€2,436 EUR to €13,348 EUR

Cheapest Retailer

€2,436 EUR

$2,722 USD

Retailer 2

€3,057 EUR

$3,415 USD

View

B+

Retailer 3

€4,216 EUR

HK$36,800 HKD

View

B+

Retailer 4

€4,283 EUR

$4,785 USD

View

B+

Retailer 5

€4,548 EUR

£4,001 GBP

View

B+

Retailer 6

€5,181 EUR

$5,788 USD

View

B+

Retailer 7

€5,513 EUR

View

B+

Retailer 8

€5,863 EUR

$6,550 USD

View

Retailer 9

€6,051 EUR

$6,760 USD

View

Retailer 10

€8,542 EUR

$9,543 USD

View

Retailer 11

€8,656 EUR

£7,615 GBP

View

Retailer 12

€8,809 EUR

ZAR 158,992 ZAR

View

Retailer 13

€9,039 EUR

$10,098 USD

View

Price last confirmed 8 days ago

Retailer 14

€9,734 EUR

A$16,731 AUD

View

Retailer 15

€11,962 EUR

$13,364 USD

View

Most Expensive

With Clarity

780664158 · Nov 1

€13,348 EUR

$14,913 USD

View

15 more retailers have this diamond

Prices start from €2,436 EURSave up to €10,912 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.

Similar diamonds

2.55ct Marquise

€2,436 EUR