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Marquise|Lab Grown|IGI

1.09ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG786601191

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG786601191

Diamond specifications and retailer prices

From $936 CAD
$670 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: $936 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 1.09ct lab-grown marquise diamond

This 1.09ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG786601191 or 786601191. 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. 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

1.09
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786601191
Dimensions10.92 × 5.18 × 3.34 mm
L/W Ratio2.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.92 mm5.18 mm1.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786601191
Side View
Table 60.0%Crown 36.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 64.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $936 CAD|Low: $182 CAD|High: $1,453 CAD|Avg: $716 CAD|-2.9%
Brilliant Earth
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
August 21, 2026
Retailer 7$405 CAD
Retailer 5$460 CAD
Retailer 2$466 CAD
Retailer 10$466 CAD
Retailer 4$508 CAD
Retailer 6$679 CAD
Retailer 8$759 CAD
Retailer 3$796 CAD
Brilliant Earth$936 CAD
Retailer 9$993 CAD

67 data points across 10 retailers

1 retailer

B
Brilliant Earth
18521997A · Oct 30
$936 CAD
$670 USD
View

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.

B
1.09ct Marquise
$936 CAD