Open a new file, that would have 450x470 px and 300dpi.

Take the next instrument
and try to represent a circle like that one indicated next picture.

Blending Options-Drop Shadow

Blending Options-Inner Glow

Gradient?s
parameters.

Copy this new made layer and apply Free Transform option to minimize it. Fill 0% on the layers and make everything look like it is demonstrated below. Keep the same parameters also.

Blending Options-Gradient Overlay

Take the next instrument
and try to represent a circle like that one indicated next picture. 
Blending Options-Drop Shadow

Blending Options-Inner Glow

Gradient?s

Copy this new made layer and apply Free Transform option to minimize it. Fill 0% on the layers and make everything look like it is demonstrated below. Keep the same parameters also.

Blending Options-Gradient Overlay
