Baltic amber stone with fossil inclusion - spider Synotaxidae Acrometa cristata.
It weighs 3.5 grams. Measurements of stone 32x22x9mm, length of spider body ~ 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.