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Cushion|Lab Grown|IGI

1.50ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG750586531

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG750586531

Diamond specifications and retailer prices

From €348 EUR
As of November 6, 2026
Save €682 EUR (66%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €1,029 EUR at MOH London · As of November 5, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG750586531 or 750586531. Listed at 5 retailers as of November 5, 2026, with prices from €348 to €1,029, a €682 spread on the same certified stone. MOH London lists it at €1,029. 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

1.50
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750586531
Dimensions6.47 × 6.44 × 4.27 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.47 mm6.44 mm1.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750586531
Side View
Table 59.0%Crown 38.6°Girdle: STK-VTKPavilion 34°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: €1,029 EUR|Low: €348 EUR|High: €1,044 EUR|Avg: €608 EUR|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4€348 EUR
Retailer 5€433 EUR
Retailer 2€480 EUR
Retailer 3€770 EUR
MOH London€1,029 EUR

37 data points across 5 retailers

5 retailers€348 EUR to €1,029 EUR

B+
Cheapest Retailer
-
€348 EUR
A
Retailer 2
-
€433 EUR
View
A
Retailer 3
-
€480 EUR
View
B+
Retailer 4
-
€770 EUR
View
Most Expensive
B
MOH London
LG750586531 · Nov 5
€1,029 EUR
£905 GBP
View
4 more retailers have this diamond
Prices start from €348 EURSave up to €682 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
€348 EUR