Micro Mosaic Beetle pendant

Again a jewel of my passion for the old kind of the 19th century (very very fine tesserae (glass) Micro Mosaic, this little beetle pendant. The whole pendant is 4 cm high so you can imagine how very very tiny these tesserrae are. The tiniest part of the pendant (see picture 4) is only 3 mm in diameter! The patience of these craftsmen must have been endless. The smaller the glass particles are the older the Micro Mosaic. This is also a good indicator to determine the age of an antique Micro Mosaic piece. I estimate that this pendant must be created around 1850. But does anyone have a different vision than I would like to hear? I would also like to know whether one of my fellow collectors has any idea whether there is a symbolic meaning emanates from this bug in this period? And the third question: I want to wear this necklace and actually a chain must be created. This should also be very tine like the pendant. Has anyone an idea what kind of necklace here the best (given the time image) would fit?