For a while I found earrings to be more of a challenge to photograph as one needs to visualize how they look when they are actually worn. In a past blog post some time ago, I showed one method of photographing them using a photo background as a prop.
I wanted another way to photograph earrings so they looked suspended in mid air but with a clean white background that showed the colors off best and required less editing afterwards. I saw the frame idea from somewhere on the web a long time ago and can't remember where but it stuck in my brain so I decided to give it a try with my own variation.
To start, I found an inexpensive picture frame mat. I strung some wire (I used a piece of flex wire) across the opening and then taped it into place. You can also use string or anything that will hold but not stretch after a while.
This is how it now looks from the front.
We have this white acrylic base for photographing and when I stand it up behind the frame mat, it provides a nice clean white backdrop. White poster board should work as well.
Since I now have an open box as part of the prop, I lined it with some cloth and use it for holding all my earring parts between photographing them.