Baltic amber stone with fossil inclusion - great spread wings mayfly Ephemeroptera.
It weighs 1.3 grams. Measurements of stone 21x21x4mm, length of insect wingspan ~ 7.5mm.
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.