Start by cutting a piece of jeans or felt. This is going to be the base of your pendant. The color is according to your preference.
Get some thin and transparent fabric and cut it in many circles. They need to be bigger than the cameo and some, need to be bigger than the base. They can also be in different sizes to give a cute look in the end.
Now, sew all the thin circles on the base right on the center of them.
Get your cameo and, if it has a little hole on its top, sew it positioning your cameo in the center of your pendant.
Then, cut a couple of pieces of lace and sew them a little under of where the cameo will be.
Glue the cameo.
The cameo will be a little on the top of the lace pieces as you can see.
Now, get a strass chain and mesure it around your cameo. Cut to fit.
Start sewing the strass chain around the cameo. It will be like its frame!
To finish your victorian project, sew a little metal piece like the one that I used right on the base.
From this metal piece you can fit a jump ring to hold the chain from your necklace.