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Cushion|Lab Grown|IGI

1.00ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG750578543

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG750578543

Diamond specifications and retailer prices

From $448 CAD
$321 USD
As of October 30, 2026
Save $896 CAD (67%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,345 CAD at MOH London · As of October 25, 2026
View at MOH London

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG750578543 or 750578543. Listed at 7 retailers as of October 25, 2026, with prices from $448 to $1,345, a $896 spread on the same certified stone. MOH London lists it at $1,345. 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

1.00
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750578543
Dimensions5.80 × 5.63 × 3.67 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.80 mm5.63 mm1.00 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750578543
Side View
Table 60.0%Crown 37.6°Girdle: STK-THKPavilion 35.1°Culet: NoneDepth 65.2%

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: Oct 30
Current: $1,345 CAD|Low: $448 CAD|High: $1,345 CAD|Avg: $664 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 7$448 CAD
Retailer 6$490 CAD
Retailer 4$503 CAD
Retailer 3$511 CAD
Retailer 5$540 CAD
Retailer 9$714 CAD
Retailer 2$726 CAD
Retailer 8$761 CAD
MOH London$1,345 CAD

8 data points across 9 retailers

7 retailers$448 CAD to $1,345 CAD

A
Cheapest Retailer
-
$448 CAD
$321 USD
A
Retailer 2
-
$490 CAD
€334 EUR
View
A
Retailer 3
-
$503 CAD
£284 GBP
View
A
Retailer 4
-
$511 CAD
$366 USD
View
B+
Retailer 5
-
$540 CAD
£304 GBP
View
B+
Retailer 6
-
$726 CAD
$520 USD
View
Most Expensive
B
MOH London
LG750578543 · Oct 25
$1,345 CAD
£758 GBP
View
6 more retailers have this diamond
Prices start from $448 CADSave up to $896 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
1.00ct Cushion
$448 CAD