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Cushion|Lab Grown|IGI

1.09ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG604304627

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG604304627

Diamond specifications and retailer prices

From $380 CAD
As of November 5, 2026
Save $1,535 CAD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,915 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG604304627 or 604304627. Listed at 8 retailers as of November 5, 2026, with prices from $380 to $1,915, a $1,535 spread on the same certified stone. MOH London lists it at $1,915. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG604304627
Dimensions7.03 × 5.54 × 3.68 mm
L/W Ratio1.27
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
7.03 mm5.54 mm1.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG604304627
Side View
Table 66.0%Crown 30.5°Girdle: MED-THKPavilion 40.1°Culet: NoneDepth 66.4%

Caratlytics Score

How it works →
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: Nov 5
Current: $1,915 CAD|Low: $300 CAD|High: $1,940 CAD|Avg: $662 CAD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6$300 CAD
Retailer 2$380 CAD
Retailer 3$428 CAD
Retailer 8$433 CAD
Retailer 4$436 CAD
Retailer 5$470 CAD
Retailer 7$686 CAD
Retailer 9$844 CAD
MOH London$1,915 CAD

35 data points across 9 retailers

8 retailers$380 CAD to $1,915 CAD

A
Cheapest Retailer
-
$380 CAD
A
Retailer 2
-
$428 CAD
View
B+
Retailer 3
-
$433 CAD
View
A
Retailer 4
-
$436 CAD
View
A
Retailer 5
-
$470 CAD
View
B+
Retailer 6
-
$686 CAD
View
B
Retailer 7
-
$844 CAD
View
Most Expensive
B
MOH London
LG604304627 · Nov 5
$1,915 CAD
£1,072 GBP
View
7 more retailers have this diamond
Prices start from $380 CADSave up to $1,535 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
1.09ct Cushion
$380 CAD