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Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG579384441

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG579384441

Diamond specifications and retailer prices

From $481 CAD
$344 USD
As of November 1, 2026
Save $1,134 CAD (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,615 CAD at MOH London · As of November 2, 2026
View at MOH London

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG579384441 or 579384441. Listed at 8 retailers as of November 1, 2026, with prices from $481 to $1,615, a $1,134 spread on the same certified stone. MOH London lists it at $1,615. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579384441
Dimensions7.06 × 5.60 × 3.91 mm
L/W Ratio1.26
Girdle conditionFaceted
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
7.06 mm5.60 mm1.21 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579384441
Side View
Table 65.0%Crown 35.9°Girdle: MED-VTKPavilion 38°Culet: NoneDepth 69.8%

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 1
Current: $1,615 CAD|Low: $365 CAD|High: $1,634 CAD|Avg: $934 CAD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 3$365 CAD
Retailer 5$481 CAD
Retailer 7$630 CAD
Retailer 2$753 CAD
Retailer 4$809 CAD
Retailer 8$1,006 CAD
Retailer 6$1,535 CAD
MOH London$1,615 CAD

27 data points across 8 retailers

8 retailers$481 CAD to $1,615 CAD

Retailer 1
-
$365 CAD
$261 USD
Price last confirmed 9 days ago
A
Retailer 2
-
$481 CAD
$344 USD
View
A
Retailer 3
-
$630 CAD
$451 USD
View
B+
Retailer 4
-
$753 CAD
£424 GBP
View
B+
Retailer 5
-
$809 CAD
$579 USD
View
Retailer 6
-
$1,006 CAD
$720 USD
View
Price last confirmed 29 days ago
B
Retailer 7
-
$1,535 CAD
$1,099 USD
View
Most Expensive
B
MOH London
LG579384441 · Nov 2
$1,615 CAD
£910 GBP
View
7 more retailers have this diamond
Prices start from $481 CADSave up to $1,134 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
1.21ct Cushion
$481 CAD