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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 €301 EUR
As of November 6, 2026
Save €1,033 EUR (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,334 EUR 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 12 retailers as of November 1, 2026, with prices from €301 to €1,334, a €1,033 spread on the same certified stone. MOH London lists it at €1,334. 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
Colour
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: €1,334 EUR|Low: €215 EUR|High: €1,350 EUR|Avg: €630 EUR|-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
Retailer 13
November 7, 2026
Retailer 12€301 EUR
Retailer 10€333 EUR
Retailer 6€426 EUR
Retailer 4€434 EUR
Retailer 3€435 EUR
Retailer 7€475 EUR
Retailer 9€545 EUR
Retailer 13€565 EUR
Retailer 5€600 EUR
Retailer 2€706 EUR
Retailer 8€833 EUR
Retailer 11€1,249 EUR
MOH London€1,334 EUR

41 data points across 13 retailers

12 retailers€301 EUR to €1,334 EUR

A
Cheapest Retailer
-
€301 EUR
Final sale: no returns
A
Retailer 2
-
€333 EUR
View
A
Retailer 3
-
€426 EUR
View
B+
Retailer 4
-
€434 EUR
View
Retailer 5
-
€435 EUR
View
Price last confirmed 32 days ago
B+
Retailer 6
-
€475 EUR
View
B+
Retailer 7
-
€545 EUR
View
B+
Retailer 8
-
€565 EUR
View
B
Retailer 9
-
€706 EUR
View
B
Retailer 10
-
€833 EUR
View
Retailer 11
-
€1,249 EUR
View
Price last confirmed 31 days ago
Most Expensive
B
MOH London
LG499105432 · Nov 1
€1,334 EUR
£1,173 GBP
View
11 more retailers have this diamond
Prices start from €301 EURSave up to €1,033 EUR

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
€301 EUR