Create a new Document 600 x600 -rgb, transparent bg

Make a circle with the marquee tool

Fill with a grid pattern. How to make Grids

We want to make our grid nice and spherical

Filter>Distort>spherize

Use 100% and run the filter 2X

Don't deselect

Create a new layer and move it beneath the mesh layer and name it "head"

Create a light to dark gray gradient

Use the circular settings and fill the sphere so it looks like the image on the left

Deselect

Choose the Mesh Layer again

Add a bevel and emboss layer style as shown here

Set the gloss contour for double ring

Choose color overlay and make it a light gray color

You should have a sphere like the one on the left now, this is our mesh

Create a new gradient like the one here

Make a new layer

Draw a rectangle

Fill it with the new gradient, linear top to bottom

We want to add a bit of depth, so duplicate the rectangle 2X, move both copies beneath the gradient layer

Fill one copy with white and one copy with black

Nudge the black rectangle to the right by 1 pixel