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Marquise|Lab Grown|IGI

4.37ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG645459455

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG645459455

Diamond specifications and retailer prices

From $23,105 CAD
$16,540 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: $23,105 CAD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 4.37ct lab-grown marquise diamond

This 4.37ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG645459455 or 645459455. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

4.37
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645459455
Dimensions8.88 × 16.80 × 5.31 mm
L/W Ratio1.89
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
8.88 mm16.80 mm4.37 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645459455
Side View
Table 62.0%Crown 31.5°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $23,105 CAD|Low: $7,726 CAD|High: $37,283 CAD|Avg: $21,661 CAD|-5.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
March 25, 2026
Retailer 2$10,235 CAD
Retailer 3$12,808 CAD
Retailer 6$12,944 CAD
Retailer 9$14,428 CAD
Retailer 8$21,999 CAD
Retailer 5$22,065 CAD
Brilliant Earth$23,105 CAD
Retailer 7$27,037 CAD
Retailer 4$35,884 CAD

36 data points across 9 retailers

1 retailer

B+
Brilliant Earth
10970136A · Oct 30
$23,105 CAD
$16,540 USD
View

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B+
4.37ct Marquise
$23,105 CAD