Baltic amber stone with fossil insect - extremely rare aquatic bug, water boatman nymph Corixidae.
It weighs 0.58 grams. Measurements of stone 17x13x3mm, length of insect body and head ~ 3.3mm, max ~ 5.2mm.
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.