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 $3,802 CAD

$2,722 USD

As of October 31, 2026

Save $14,866 CAD (80%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $18,669 CAD at Taylor and Hart · As of October 30, 2026

View at Taylor and Hart

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 14 retailers as of October 30, 2026, with prices from $3,802 to $18,669, a $14,866 spread on the same certified stone. Taylor and Hart lists it at $18,669. 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: $7,097 CAD|Low: $3,494 CAD|High: $26,358 CAD|Avg: $10,878 CAD|-27.7%

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

Taylor and Hart

October 31, 2026

Retailer 5$3,494 CAD

Retailer 15$3,802 CAD

Retailer 13$4,770 CAD

Retailer 12$6,489 CAD

Retailer 4$6,669 CAD

Retailer 1$7,097 CAD

Retailer 2$8,085 CAD

Retailer 9$8,604 CAD

Retailer 11$9,150 CAD

Retailer 3$12,185 CAD

Retailer 10$13,580 CAD

Retailer 8$13,748 CAD

Retailer 14$14,106 CAD

Retailer 6$15,271 CAD

Taylor and Hart$18,669 CAD

Retailer 7$26,358 CAD

24 data points across 16 retailers

14 retailers$3,802 CAD to $18,669 CAD

Cheapest Retailer

$3,802 CAD

$2,722 USD

Retailer 2

$4,770 CAD

$3,415 USD

View

B+

Retailer 3

$6,489 CAD

$4,645 USD

View

B+

Retailer 4

$6,669 CAD

HK$37,300 HKD

View

B+

Retailer 5

$7,097 CAD

£4,001 GBP

View

B+

Retailer 6

$8,085 CAD

$5,788 USD

View

B+

Retailer 7

$8,604 CAD

€5,866 EUR

View

Retailer 8

$8,605 CAD

$6,160 USD

View

Price last confirmed 19 days ago

B+

Retailer 9

$9,150 CAD

$6,550 USD

View

Retailer 10

$12,185 CAD

$8,723 USD

View

Retailer 11

$13,580 CAD

£7,655 GBP

View

Retailer 12

$13,748 CAD

ZAR 158,992 ZAR

View

Retailer 13

$14,106 CAD

$10,098 USD

View

Price last confirmed 7 days ago

Most Expensive

Taylor and Hart

46XZ5YJ · Oct 30

$18,669 CAD

$13,364 USD

View

13 more retailers have this diamond

Prices start from $3,802 CADSave up to $14,866 CAD

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

$3,802 CAD