This is one of those pieces I dare guarantee that the actual piece looks even better than the pictures here. The colours are just not right here. Actual colours are brighter and lighter.
Blue and green (lime green actually) Chalcedony petals with Smoky Quartz of various shapes.
Chain is sterling silver. Length is an easy-to-wear 18.5", slightly longer than a choker and rests nicely at the collar bone.