Baltic amber stone with fossil inclusion - rare predaceous beetle larvae Adephaga.
It weighs 0.2 grams. Measurements of stone 13x8x2mm, length of larvae ~ 2.1mm.
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.