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Cushion|Lab Grown|IGI

1.50ct F SI1 Cushion Lab Grown Diamond

VG • F/SI1 • IGI LG519254388

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG519254388

Diamond specifications and retailer prices

From $1,366 CAD
As of November 6, 2026
Save $2,003 CAD (59%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,675 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG519254388 or 519254388. Listed at 7 retailers as of November 5, 2026, with a 147% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle42.6°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519254388
Dimensions6.75 × 5.94 × 4.04 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeSmall Natural
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process.
Top View
6.75 mm5.94 mm1.50 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG519254388
Side View
Table 66.0%Crown 42.6°Girdle: VTK-ETKPavilion 34.6°Culet: SmallDepth 68.0%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $4,675 CAD|Low: $1,075 CAD|High: $4,730 CAD|Avg: $2,325 CAD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$1,075 CAD
Retailer 6$1,366 CAD
Retailer 2$1,630 CAD
Retailer 4$1,653 CAD
Retailer 3$1,758 CAD
Retailer 7$3,369 CAD
MOH London$4,675 CAD

41 data points across 7 retailers

7 retailers$1,366 CAD to $3,369 CAD

Retailer 1
-
$1,075 CAD
Price last confirmed 22 days ago
B
Retailer 2
-
$1,366 CAD
View
B
Retailer 3
-
$1,630 CAD
View
B
Retailer 4
-
$1,653 CAD
View
B
Retailer 5
-
$1,758 CAD
View
C
Retailer 6
-
$3,369 CAD
View
Most Expensive
MOH London
LG519254388 · Nov 1
$4,675 CAD
£2,617 GBP
View
Price under review
6 more retailers have this diamond
Prices start from $1,366 CADSave up to $2,003 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.

B
1.50ct Cushion
$1,366 CAD