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Cushion|Lab Grown|IGI

1.50ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG499105432

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG499105432

Diamond specifications and retailer prices

From $336 USD
As of November 6, 2026
Save $1,154 USD (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,490 USD 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG499105432 or 499105432. Listed at 11 retailers as of November 1, 2026, with prices from $336 to $1,490, a $1,154 spread on the same certified stone. MOH London lists it at $1,490. 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
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499105432
Dimensions6.43 × 6.36 × 4.46 mm
L/W Ratio1.01
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
6.43 mm6.36 mm1.50 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499105432
Side View
Table 64.5%Crown 33°Girdle: Very ThickPavilion 39.5°Culet: NoneDepth 70.1%

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: Nov 6
Current: $1,490 USD|Low: $240 USD|High: $1,507 USD|Avg: $701 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10$336 USD
Retailer 8$372 USD
Retailer 2$473 USD
Retailer 3$485 USD
Retailer 5$485 USD
Retailer 12$486 USD
Retailer 7$608 USD
Retailer 11$631 USD
Retailer 4$670 USD
Retailer 6$930 USD
Retailer 9$1,395 USD
MOH London$1,490 USD

41 data points across 12 retailers

11 retailers$336 USD to $1,490 USD

A
Cheapest Retailer
-
$336 USD
Final sale: no returns
Retailer 2
-
$372 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$473 USD
View
B+
Retailer 4
-
$485 USD
View
A
Retailer 5
-
$485 USD
View
Retailer 6
-
$486 USD
View
Price last confirmed 31 days ago
B+
Retailer 7
-
$608 USD
View
B+
Retailer 8
-
$631 USD
View
B
Retailer 9
-
$930 USD
View
Retailer 10
-
$1,395 USD
View
Price last confirmed 30 days ago
Most Expensive
B
MOH London
LG499105432 · Nov 1
$1,490 USD
£1,173 GBP
View
10 more retailers have this diamond
Prices start from $336 USDSave up to $1,154 USD

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
$336 USD