Gorgeous and really chunky bug pendant. 
The bug's head is made from a ceylon sapphire set in gold, and with gold antennae, his body a huge faceted topaz.
The legs and abdomen also modelled in high carat gold.
 
Measures - 75mm x 21mm
sapphire approx .65 carat
topaz - maybe 10 carats --  24mm x 19mm
weighs - 14.19g
 
Excellent condition
english circa 1880