Baltic amber stone with fossil insect - probably larva of click beetle Elateridae.
It weighs 0.5 grams. Measurements of stone 18x12x3mm, length of larva ~ 2.7mm.
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.