I have done a few posts on Jewellery Display, including some simple to follow templates, so to save you time searching for them on my blog, I thought I would include the links below:
Necklace Display template & tutorial :
Wooden Necklace display busts
Necklace Display Ideas: Lots of useful ways to display your necklaces at craft fairs
Earring Display Idea: Using Ikea picture frames
An old Umbrella is very unique way to display earrings etc.
Earring Display Ideas: Lots of useful ideas to display your earrings at Craft Fairs
Earring Display Cards (simple tutorial):
Beaded Wire Business Card Holder (tutorial):
Georgia P Designs 