Baltic amber stone with fossil insect - extremely rare predatory aquatic bug, smaller water strider (broad-shouldered water strider) Veliidae.
It weighs 0.5 grams. Measurements of stone 21x12x3mm, length of insect body and head ~ 1.8mm.
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.