CaratHunter
Plans
Cushion|Lab Grown|IGI

1.53ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG512220405

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG512220405

Diamond specifications and retailer prices

From $474 CAD
As of November 6, 2026
Save $1,078 CAD (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,552 CAD at MOH London · As of November 2, 2026
View at MOH London

About this 1.53ct lab-grown cushion diamond

This 1.53ct 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 top-tier cut grade and certified by IGI LG512220405 or 512220405. Listed at 5 retailers as of November 2, 2026, with prices from $474 to $1,552, a $1,078 spread on the same certified stone. MOH London lists it at $1,552. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.53
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220405
Dimensions6.83 × 6.65 × 4.39 mm
L/W Ratio1.03
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
6.83 mm6.65 mm1.53 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220405
Side View
Table 63.0%Crown 35.8°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 66.0%

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: Nov 6
Current: $1,552 CAD|Low: $474 CAD|High: $1,570 CAD|Avg: $917 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$474 CAD
Retailer 3$572 CAD
Retailer 5$695 CAD
Retailer 2$713 CAD
Retailer 6$1,485 CAD
MOH London$1,552 CAD

36 data points across 6 retailers

5 retailers$474 CAD to $1,552 CAD

B+
Cheapest Retailer
-
$474 CAD
A
Retailer 2
-
$572 CAD
View
A
Retailer 3
-
$713 CAD
View
B
Retailer 4
-
$1,485 CAD
View
Most Expensive
B
MOH London
LG512220405 · Nov 2
$1,552 CAD
£869 GBP
View
4 more retailers have this diamond
Prices start from $474 CADSave up to $1,078 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
1.53ct Cushion
$474 CAD