Baltic amber stone with fossil insect - rove beetle Staphylinidae probably Paederinae and 2 large fungus gnats Mycetophilidae.
It weighs 5.9 grams. Measurements of stone 49x25x9mm, length of insects body and head ~ 3.3 - 3.8mm.
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.