CaratHunter
Plans
Cushion|Lab Grown|IGI

1.50ct I SI1 Cushion Lab Grown Diamond

GD • I/SI1 • IGI LG436074055

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG436074055

Diamond specifications and retailer prices

From $3,323 CAD
$2,379 USD
As of October 26, 2026
Save $3,459 CAD (51%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,782 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG436074055 or 436074055. Listed at 4 retailers as of October 26, 2026, with prices from $3,323 to $6,782, a $3,459 spread on the same certified stone. MOH London lists it at $6,782. 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
I
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074055
Dimensions6.57 × 6.55 × 4.51 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
6.57 mm6.55 mm1.50 ctI / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074055
Side View
Table 57.5%Crown 33.2°Girdle: STK-VTKPavilion 40.7°Culet: NoneDepth 68.9%

Caratlytics Score

How it works →
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: Oct 26
Current: $6,782 CAD|Low: $2,100 CAD|High: $6,828 CAD|Avg: $3,748 CAD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 4$2,100 CAD
Retailer 6$2,434 CAD
Retailer 5$2,894 CAD
Retailer 3$3,323 CAD
Retailer 2$3,325 CAD
MOH London$6,782 CAD

14 data points across 6 retailers

4 retailers$3,323 CAD to $6,782 CAD

Retailer 1
-
$2,100 CAD
$1,503 USD
Price last confirmed 18 days ago
B
Retailer 2
-
$3,323 CAD
$2,379 USD
View
B
Retailer 3
-
$3,325 CAD
$2,380 USD
View
Most Expensive
C
MOH London
LG436074055 · Oct 29
$6,782 CAD
£3,823 GBP
View
3 more retailers have this diamond
Prices start from $3,323 CADSave up to $3,459 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
$3,323 CAD