The simplest way by far is to cover it with something more attractive.
Here we will show you how we do it.
We used a beautiful little bird image that we glued onto a cabochon and let dry.
We got some Glossy Accents, E6000 glue, some glitter and a bail.
The birdie cabochon was nice but a bit rought around the edges, and the paper was obviously too big for the cab, so a bit of cutting and tidying was in order. The dried glaze that had oozed out of the glass cracked as it was cut but as it would be covered again with more glaze this was not a problem. You can find it easier to use a nail file to tidy up the edges.
The edge of the paper was so bright white, that we painted it with a purple pen to match the glitter we intended to use.
So far so tidy. No sharp edges, no visible paper, no ink onto the image. All good!
E6000 will leave 'hairs' so use tweezers to remove these. You will see in the picture below E6000 doesn't always look neat if you use too much! If you intend to not cover the paper, you can apply the E6000 with a tootpick onto the bail - just a small amount and none will seep out.
Once the E6000 was dry, we applied a layer of Glossy Accents....
And immediately sprinkled it with glitter so the entire glue surface was covered. Blow gently onto the piece so the excess glitter cleans off. The bail looks covered in this picture but it cleans up nicely when dry. You don't want to handle it too much at this stage as it will be very wet. Let this dry straight (aided by the tweezers!) for a good long while. A day or two is good.
When completely dry, you need to seal the glitter - you don't really want to have bare glitter next to your skin or clothes. You can use another coat of Glossy Accents for this, although with time, this can cloud over. You can also use ModPodge, or even better, if you have it, resin. Whichever method you decide, leave to dry thoroughly before wearing. As this will be your top coat, look out for bubbles - keep a watch as they may not appear initally.