Baltic amber stone with fossil insect - large checkered beetle Cleridae, probably Cymatodera with extended genitalia.
It weighs 2.9 grams. Measurements of stone 23x21x11mm, length of beetle body ~ 7.2mm.
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.