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Marquise|Lab Grown|IGI

3.25ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG841639173

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841639173

Diamond specifications and retailer prices

From $552 CAD
$395 USD
As of October 29, 2026
Save $4,254 CAD (89%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,805 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.25ct lab-grown marquise diamond

This 3.25ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG841639173 or 841639173. Listed at 3 retailers as of October 29, 2026, with prices from $552 to $4,805, a $4,254 spread on the same certified stone. Brilliant Earth lists it at $4,805. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.25
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841639173
Dimensions14.54 × 7.74 × 5.00 mm
L/W Ratio1.88
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.54 mm7.74 mm3.25 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841639173
Side View
Table 62.0%Crown 38°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 64.6%

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 29
Current: $4,805 CAD|Low: $552 CAD|High: $6,859 CAD|Avg: $3,397 CAD|-29.9%
Brilliant Earth
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$552 CAD
Retailer 2$1,148 CAD
Brilliant Earth$4,805 CAD

26 data points across 3 retailers

3 retailers$552 CAD to $4,805 CAD

A
Cheapest Retailer
-
$552 CAD
$395 USD
Final sale: no returns
A
Retailer 2
-
$1,148 CAD
£647 GBP
View
Most Expensive
B
Brilliant Earth
21706310A · Oct 30
$4,805 CAD
$3,440 USD
View
2 more retailers have this diamond
Prices start from $552 CADSave up to $4,254 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
3.25ct Marquise
$552 CAD