CaratHunter
Plans
Cushion|Lab Grown|IGI

1.50ct D SI1 Cushion Lab Grown Diamond

GD • D/SI1 • IGI LG529262305

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG529262305

Diamond specifications and retailer prices

From $388 CAD
$278 USD
As of October 30, 2026
Save $1,343 CAD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,731 CAD at MOH London · As of October 29, 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG529262305 or 529262305. Listed at 13 retailers as of October 29, 2026, with prices from $388 to $1,731, a $1,343 spread on the same certified stone. MOH London lists it at $1,731. 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
D
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529262305
Dimensions7.40 × 6.19 × 4.19 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
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
7.40 mm6.19 mm1.50 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529262305
Side View
Table 58.0%Crown 37.4°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,731 CAD|Low: $277 CAD|High: $1,802 CAD|Avg: $963 CAD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 3$388 CAD
Retailer 10$430 CAD
Retailer 7$480 CAD
Retailer 12$580 CAD
Retailer 4$704 CAD
Retailer 8$777 CAD
Retailer 13$778 CAD
Retailer 2$810 CAD
Retailer 9$1,080 CAD
Retailer 11$1,439 CAD
Retailer 5$1,454 CAD
Retailer 6$1,578 CAD
MOH London$1,731 CAD

43 data points across 13 retailers

13 retailers$388 CAD to $1,731 CAD

A
Cheapest Retailer
-
$388 CAD
$278 USD
Final sale: no returns
B+
Retailer 2
-
$430 CAD
$308 USD
View
A
Retailer 3
-
$480 CAD
£270 GBP
View
B
Retailer 4
-
$580 CAD
$415 USD
View
B+
Retailer 5
-
$704 CAD
$504 USD
View
B+
Retailer 6
-
$777 CAD
€530 EUR
View
B+
Retailer 7
-
$778 CAD
$557 USD
View
B+
Retailer 8
-
$810 CAD
£457 GBP
View
B
Retailer 9
-
$1,080 CAD
$773 USD
View
Retailer 10
-
$1,439 CAD
$1,030 USD
View
Price last confirmed 10 days ago
B
Retailer 11
-
$1,454 CAD
$1,041 USD
View
B
Retailer 12
-
$1,578 CAD
$1,130 USD
View
Most Expensive
B
MOH London
LG529262305 · Oct 29
$1,731 CAD
£976 GBP
View
12 more retailers have this diamond
Prices start from $388 CADSave up to $1,343 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
1.50ct Cushion
$388 CAD