Baltic amber stone with fossin inclusion - probably parasitic mite suck to fungus gnat Mycetophilidae, great looking.
It weighs 1.2 grams. Measurements of stone 20x17x5mm, length of insect body and head ~ 2.5mm, wingspan ~ 5.5mm.
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.