That blue! This pendant has a rich cobalt blue glass layered over white opaque glass, accented with vitreous enamel detail in black, white, and multiple shades of blue. It hangs from a loop that sits on the back of the top left wing, so the butterfly appears to be in flight when worn.
Soda lime glass
65mm x 41mm, 3-4mm loop on back of wing
Ships free via USPS Priority Mail within the US.