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Marquise|Lab Grown|IGI

1.55ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG780685588

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780685588

Diamond specifications and retailer prices

From $1,608 CAD
$1,151 USD
As of November 1, 2026
Save $5,351 CAD (77%) 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 LG780685588 or 780685588. Listed at 23 retailers as of October 31, 2026, with prices from $1,608 to $6,959, a $5,351 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
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780685588
Dimensions11.67 × 6.08 × 3.87 mm
L/W Ratio1.92
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
Top View
11.67 mm6.08 mm1.55 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780685588
Side View
Table 60.0%Crown 35.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.7%

Caratlytics Score

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A
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: $6,959 CAD|Low: $1,379 CAD|High: $6,959 CAD|Avg: $3,295 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 11$1,437 CAD
Retailer 4$1,666 CAD
Retailer 2$1,883 CAD
Retailer 6$1,907 CAD
Retailer 12$2,383 CAD
Retailer 5$2,402 CAD
Retailer 8$3,062 CAD
Retailer 10$3,179 CAD
Retailer 7$4,515 CAD
Retailer 3$4,919 CAD
Retailer 9$5,658 CAD
Brilliant Earth$6,959 CAD

35 data points across 12 retailers

23 retailers$1,608 CAD to $6,959 CAD

Retailer 1
-
$1,437 CAD
$1,028 USD
Price last confirmed 25 days ago
Retailer 2
-
$1,562 CAD
$1,118 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$1,608 CAD
$1,151 USD
View
Final sale: no returns
Retailer 4
-
$1,666 CAD
$1,192 USD
View
Price last confirmed 30 days ago
Retailer 5
-
$1,666 CAD
$1,192 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$1,824 CAD
$1,305 USD
View
A
Retailer 7
-
$1,883 CAD
£1,061 GBP
View
A
Retailer 8
-
$1,907 CAD
$1,365 USD
View
A
Retailer 9
-
$1,949 CAD
$1,395 USD
View
A
Retailer 10
-
$2,383 CAD
$1,705 USD
View
A
Retailer 11
-
$2,402 CAD
£1,354 GBP
View
B+
Retailer 12
-
$3,062 CAD
ZAR 35,405 ZAR
View
Retailer 13
-
$3,123 CAD
$2,235 USD
View
Price last confirmed 33 days ago
B+
Retailer 14
-
$3,179 CAD
$2,275 USD
View
B
Retailer 15
-
$4,515 CAD
€3,077 EUR
View
B
Retailer 16
-
$4,600 CAD
£2,592 GBP
View
B
Retailer 17
-
$4,919 CAD
$3,520 USD
View
B
Retailer 18
-
$5,165 CAD
$3,696 USD
View
B
Retailer 19
-
$5,359 CAD
$3,835 USD
View
B
Retailer 20
-
$5,583 CAD
SGD 5,399 SGD
View
B
Retailer 21
-
$5,658 CAD
£3,188 GBP
View
B
Retailer 22
-
$5,813 CAD
$4,160 USD
View
Most Expensive
B
Brilliant Earth
19705255A · Oct 31
$6,959 CAD
$4,980 USD
View
22 more retailers have this diamond
Prices start from $1,608 CADSave up to $5,351 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.

A
1.55ct Marquise
$1,608 CAD