Step 9 – Choose the duplicated gradient layer, giving it a slightly different gradient of greys and whites. Bring the duplicated gradient layer down, positioning it under both of the other layers. Move it to where it is seen from both sides as it is the rim of the orb.
Step 10 -Erase the parts of the orb that are not needed. Keep Ctrl/Cmd pressed and click on the layer thumbnails; first choose the big outer rim ellipse, having the gray gradient, and then Shift+Ctrl/Cmd+Click on the thumbnail of the upper top portion layer. The 2 ellipses will be selected, but we need to also select the bottom portion of the orb. Choosing the Rectangular marquee tool, hold down shift and drag over the bottom portion. Inverse the selection (Ctrl/Cmd+Shift+I) and delete the middle part of the orb.
Step 11. Now to create the glass portion. Create a circle of the same size of the orb, any color you want. Place it behind the other layers.
Step 12 -As with the first outer orb, give this circle the same inner-glow effect, bringing it forward to cover all but the red outer sections of the orb.
Step 13) Go to the layer palette and make the fill amount =0 to make the layer invisible, but keeps the layer effects visible.
Step 14. As you had done with the red circle, ie, creating a white gradient reflection, create the same in a new layer above the glass layer, so as to create a more realistic lighting effect. Adjust the settings as required to make it as realistic looking as possible.
Step 15. Now select the base layers, ie the grey metal gradient layers and the white elipse, and merge them together. After this press Cntrl+U to adjust the hue of the layer. Since it's grey, click on colorize, and adjust to a redish colour in keeping with the colour of the orb itself.
Step 16) Lastly, make a very small drop shadow to the upper piece of the red orb, in order to create more realism. The lower portion may seem off, so create a new layer above the red lower orb portion. Select the radial gradient tool in the white to nothing option and drag from a point over the red to just a bit inward. Erase parts that are not enclosed within the red portion.
Now you have a glass ball. Any items can be displayed inside the ball now, but make sure they have a good reflection effect added on. This effect will provide the base a shiny and realistic look.