60s Olive Green Moonglow Thermoset Necklace, Vintage Thermoset Choker

1960s Coro thermoset moon glow choker. Over the years I've had this necklace in a few different colours but I love this earthy olive green!  It actually glows much paler in some light.  The chain adjusts in length from 11 to 14" , the middle section with the stones is just 7" long and about 5/8" wide. 
The settings are silver tone in a leaf pattern and are in very good condition.  The chain and hook at the back has dulled a bit but is not noticeable when worn.  The piece is not signed but I have another exact choker in pink that is so I feel fairly safe in saying that it is Coro.