Baltic amber stone with fossin inclusion - probably parasitic mite suck to crane fly Limoniidae.
It weighs 0.3 grams. Measurements of stone 11x7x5mm, length of insect max ~ 8mm, body and head ~ 3mm.
I can send digital high resolution picture by e-mail for personal (not commercial) use. Contact me concerning it.
If you which stone can be made into pendant for free. Please check if stone measurements are suitable for you.