Do you still have the instructions that came with it? They should say what the range of focus is, how close you can get to an object with it and still take clear pictures. If it's not close enough, all is not lost.
I make images of my beads using a color flatbed scanner. If you already have such a scanner, you might try it. There's a bit of a glare on the beads since you can't filter the light in any way, but the pictures are generally sharp and you can adjust the color balance, etc. I send them to our Adobe Photoshop program to tweak them, add text, and export them as a gif file. I'll try to put up an example, if I can get it to attach. If you don't have such a scanner, they are pretty cheap if you have a computer with a USB port. If you have SCSI ports, it may be a little more expensive. I think I overpaid for mine.
Anyway, good luck! I know there's a way to get good images of your beautiful things!