Vintage Oversized Black Cicada Necklace serpent and it's finished in exceptionally

and it's finished in exceptionally fine turquoise guilloché enamelling within a white enamel border

with diamond-set floral and foliate swirls emanating from a central cushion cut sapphire

and various flowers: musk rose

however further spectrographic study indicates it may be a mixture of copper hydroxide spertiniite and chalcedony

Vintage Oversized Black Cicada Necklace serpent and it's finished in exceptionallyDATE: Vintage, c. 1970 Cool vintage necklace featuring a huge black glass cicada hanging from a black beaded necklace. The bug has a two tone matte and gloss finish, with stylised details and smooth rounded base. Just above it is a larger bead adorned with gold symbols.. the meaning of which I'm uncertain. It dates from the 1970s. MEASUREMENTS Wearable length: 24 inches Pendant: 6. 8 x 3. 6cm WEIGHT 70. 2g