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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 €249 EUR
$278 USD
As of November 1, 2026
Save €855 EUR (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,104 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 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 November 1, 2026, with prices from €249 to €1,104, a €855 spread on the same certified stone. MOH London lists it at €1,104. 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
Colour
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: Nov 1
Current: €1,104 EUR|Low: €177 EUR|High: €1,155 EUR|Avg: €623 EUR
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 1, 2026
Retailer 3€249 EUR
Retailer 10€276 EUR
Retailer 2€307 EUR
Retailer 12€371 EUR
Retailer 4€451 EUR
Retailer 7€494 EUR
Retailer 13€499 EUR
Retailer 6€519 EUR
Retailer 9€692 EUR
Retailer 11€922 EUR
Retailer 5€932 EUR
Retailer 8€1,011 EUR
MOH London€1,104 EUR

43 data points across 13 retailers

13 retailers€249 EUR to €1,104 EUR

A
Cheapest Retailer
-
€249 EUR
$278 USD
Final sale: no returns
Retailer 2
-
€276 EUR
$308 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
€307 EUR
£270 GBP
View
B
Retailer 4
-
€371 EUR
$415 USD
View
B+
Retailer 5
-
€451 EUR
$504 USD
View
B+
Retailer 6
-
€494 EUR
View
B+
Retailer 7
-
€499 EUR
$557 USD
View
B+
Retailer 8
-
€519 EUR
£457 GBP
View
B
Retailer 9
-
€692 EUR
$773 USD
View
B
Retailer 10
-
€922 EUR
$1,030 USD
View
B
Retailer 11
-
€932 EUR
$1,041 USD
View
B
Retailer 12
-
€1,011 EUR
$1,130 USD
View
Most Expensive
B
MOH London
LG529262305 · Nov 1
€1,104 EUR
£971 GBP
View
12 more retailers have this diamond
Prices start from €249 EURSave up to €855 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
€249 EUR