The layer’s parameters:
Blending Options>Gradient Overlay
Gradient’s parameters:
Blending Options>Stroke

Now we have to represent a flare on the icon’s surface, choosing the
Ellipse Tool (U) and cut out the lowest top with the
Delete Anchor Point Tool. Next we need to make the corrections on the shapes, applying the
Convert Point Tool.

The layer’s parameters:
Fill 0% on the layers.
Blending Options>Gradient Overlay
Gradient’s parameters: