Baltic amber stone with fossil inclusion - great looking Adephagan beetle larva probably Dytiscidae or Carabidae.
It weighs 0.7 grams. Measurements of stone 17x14x3mm, length of larva ~ 2.7mm curled.
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.