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Marquise|Lab Grown|IGI

1.20ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG818661434

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818661434

Diamond specifications and retailer prices

From $2,878 CAD
$2,060 USD
As of October 30, 2026
3 retailers carry this diamond
Most expensive: $2,878 CAD at Brilliant Earth
View at Brilliant Earth

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818661434 or 818661434. Listed at 3 retailers as of October 30, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818661434
Dimensions10.79 × 5.48 × 3.56 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.79 mm5.48 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818661434
Side View
Table 59.0%Crown 35.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 65.0%

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: $2,878 CAD|Low: $623 CAD|High: $2,878 CAD|Avg: $1,474 CAD|+0.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
September 7, 2026
Retailer 3$806 CAD
Retailer 5$849 CAD
Retailer 2$881 CAD
Retailer 7$1,105 CAD
Retailer 8$1,195 CAD
Retailer 9$1,716 CAD
Retailer 4$1,795 CAD
Retailer 6$2,187 CAD
Brilliant Earth$2,878 CAD

19 data points across 9 retailers

3 retailers

Retailer 1
-
$1,195 CAD
A$1,316 AUD
Price last confirmed 72 days ago
Retailer 2
-
$2,187 CAD
$1,566 USD
View
Price last confirmed 54 days ago
Most Expensive
B
Brilliant Earth
21035757A · Oct 30
$2,878 CAD
$2,060 USD
View
2 more retailers have this diamond

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
1.20ct Marquise
$2,878 CAD