New vintage aqua green acrylic pendant necklace

New vintage aqua green acrylic pendant necklace Unique find from the 1970s! Heavy silver costume swirls and pretty acrylic egg like “stone” with “inclusions”. Mostly a vivid dark green-blue. With lighter Aqua Robin’s egg blue-green. Pendant: 18x28 mm x 4 mm thick not including bail Curb Chain: 22”, +1 mm wide links Silver tone metal New vintage c. 1970s. Costume silver metal and acrylic.