Diamond Jewelery Shop Logo

Start by creating a rectangle using rectangular shape tool.

Select the rectangle path using path selection tool. Now select delete anchor point tool.

Using this tool click on bottom left anchor point to delete it.

Create a rectangle using rectangular shape tool.

Select this rectangle's top left anchor point using direct selection tool. Move the anchor point a few pixels to right side.

Select both layers. Duplicate the layer. Press Ctrl+T. Right click and select Flip Horizontal and place on the other side.

Fill the duplicate layers with blue color.

Select original layer. Double click the layer to open layer style window. Apply settings as shown. Apply this stroke on both shapes on left.

Set fill value to zero for these layers.

Add the company name and punch line below the diamond icon. Apply some glow etc to enhance the effect.