Marquise|Lab Grown|IGI

1.55ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG790611664

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790611664

Diamond specifications and retailer prices

From $1,288 CAD

$922 USD

As of November 2, 2026

Save $5,671 CAD (81%) vs most expensive(unlock to see where)

23 retailers carry this diamond

Most expensive: $6,959 CAD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790611664 or 790611664. Listed at 23 retailers as of October 31, 2026, with prices from $1,288 to $6,959, a $5,671 spread on the same certified stone. Brilliant Earth lists it at $6,959. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55

Carat

Color

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.5°

Pavilion angle39.9°

OriginLab Grown

Grading LabIGI

CertificateIGI LG790611664

Dimensions11.69 × 6.12 × 3.79 mm

L/W Ratio1.91

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 LG790611664

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: Nov 2

Current: $6,959 CAD|Low: $1,288 CAD|High: $6,959 CAD|Avg: $2,999 CAD

Brilliant Earth

Retailer 2

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Retailer 22

November 2, 2026

Retailer 15$1,288 CAD

Retailer 5$1,402 CAD

Retailer 11$1,442 CAD

Retailer 4$1,494 CAD

Retailer 20$1,494 CAD

Retailer 19$1,735 CAD

Retailer 17$1,740 CAD

Retailer 3$1,775 CAD

Retailer 9$1,790 CAD

Retailer 2$2,302 CAD

Retailer 18$2,374 CAD

Retailer 10$2,397 CAD

Retailer 16$2,747 CAD

Retailer 22$3,324 CAD

Retailer 8$4,131 CAD

Retailer 21$4,202 CAD

Retailer 6$4,676 CAD

Retailer 12$4,887 CAD

Retailer 14$5,014 CAD

Retailer 13$5,069 CAD

Retailer 7$5,196 CAD

Brilliant Earth$6,959 CAD

38 data points across 22 retailers

23 retailers$1,288 CAD to $6,959 CAD

Cheapest Retailer

$1,288 CAD

$922 USD

Retailer 2

$1,402 CAD

$1,003 USD

View

Retailer 3

$1,442 CAD

$1,032 USD

View

Final sale: no returns

Retailer 4

$1,494 CAD

$1,069 USD

View

Retailer 5

$1,494 CAD

$1,069 USD

View

Price last confirmed 16 days ago

Retailer 6

$1,735 CAD

HK$9,700 HKD

View

Retailer 7

$1,740 CAD

$1,245 USD

View

Retailer 8

$1,775 CAD

$1,270 USD

View

Retailer 9

$1,790 CAD

$1,281 USD

View

Retailer 10

$2,302 CAD

£1,297 GBP

View

Retailer 11

$2,374 CAD

€1,618 EUR

View

Retailer 12

$2,397 CAD

$1,715 USD

View

B+

Retailer 13

$2,747 CAD

ZAR 31,758 ZAR

View

B+

Retailer 14

$3,324 CAD

$2,379 USD

View

Retailer 15

$4,131 CAD

£2,328 GBP

View

Retailer 16

$4,202 CAD

$3,007 USD

View

B+

Retailer 17

$4,437 CAD

$3,175 USD

View

Retailer 18

$4,676 CAD

$3,346 USD

View

Retailer 19

$4,887 CAD

$3,497 USD

View

B+

Retailer 20

$5,014 CAD

SGD 4,849 SGD

View

Retailer 21

$5,069 CAD

£2,856 GBP

View

Retailer 22

$5,196 CAD

$3,718 USD

View

Most Expensive

Brilliant Earth

19074327A · Oct 31

$6,959 CAD

$4,980 USD

View

22 more retailers have this diamond

Prices start from $1,288 CADSave up to $5,671 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.

Where to buy this spec

See every retailer carrying 1.55ct D FL marquise lab-grown

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

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