Baltic amber stone with fossil inclusion - huge spider, probably Trochanteriidae Sosybius.
It weighs 2.6 grams. Measurements of stone 27x22x8mm, length of spider body ~ 7.5mm.
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.