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Marquise|Lab Grown|IGI

1.55ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG775633135

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG775633135

Diamond specifications and retailer prices

From $1,419 CAD
$1,010 USD
As of October 27, 2026
Save $3,245 CAD (70%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,664 CAD at Brilliant Earth · As of October 28, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG775633135 or 775633135. Listed at 2 retailers as of October 27, 2026, with prices from $1,419 to $4,664, a $3,245 spread on the same certified stone. Brilliant Earth lists it at $4,664. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG775633135
Dimensions11.91 × 6.00 × 3.77 mm
L/W Ratio1.99
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
11.91 mm6.00 mm1.55 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG775633135
Side View
Table 58.0%Crown 34.9°Girdle: THN-MEDPavilion 40.3°Culet: NoneDepth 62.8%

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: Oct 27
Current: $4,664 CAD|Low: $1,045 CAD|High: $5,724 CAD|Avg: $3,335 CAD|-14.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
September 27, 2026
Retailer 2$1,419 CAD
Retailer 3$2,192 CAD
Retailer 5$2,207 CAD
Retailer 7$2,232 CAD
Retailer 6$2,276 CAD
Retailer 10$2,548 CAD
Retailer 4$2,724 CAD
Retailer 11$2,752 CAD
Brilliant Earth$4,664 CAD
Retailer 12$4,780 CAD
Retailer 9$4,782 CAD
Retailer 8$5,103 CAD

32 data points across 12 retailers

2 retailers$1,419 CAD to $4,664 CAD

A
Cheapest Retailer
-
$1,419 CAD
$1,010 USD
Final sale: no returns
Most Expensive
B
Brilliant Earth
18047172A · Oct 28
$4,664 CAD
$3,320 USD
View
1 more retailer has this diamond
Prices start from $1,419 CADSave up to $3,245 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
$1,419 CAD