Baltic amber stone with fossil inclusion - large larval case, probably Lepidopteran, moss twig was used for construction or camouflage.
It weighs 3.1 grams. Measurements of stone 28x24x8mm, length of case ~ 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.