Baltic amber stone with fossil inclusions - swarm of 7 larvaes, probably Dipteran Brachycera.
It weighs 0.7 grams. Measurements of stone 16x12x4mm, length of larvas ~ 2mm.
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.