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Marquise|Lab Grown|IGI

3.15ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG551213327

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG551213327

Diamond specifications and retailer prices

From $2,577 CAD
$1,845 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $2,577 CAD at B2C Jewels
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 B2C Jewels

About this 3.15ct lab-grown marquise diamond

This 3.15ct 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 LG551213327 or 551213327. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.15
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551213327
Dimensions15.48 × 7.75 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
15.48 mm7.75 mm3.15 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551213327
Side View
Table 58.5%Crown 33°Girdle: 0.0Pavilion 40.5°Culet: NoneDepth 61.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,577 CAD|Low: $2,467 CAD|High: $3,182 CAD|Avg: $2,742 CAD|-19.0%
September 23, 2026
B2C Jewels$2,577 CAD

3 data points across 1 retailer

1 retailer

B
B2C Jewels
21171359 · Oct 29
$2,577 CAD
$1,845 USD
View

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B
3.15ct Marquise
$2,577 CAD