Vintage Kyanite Sterling Abstract Pendant Pin

Vintage sterling pin marked 925. Features Kyanite stone and abstract swirl setting. Wear as a pendant or a pin. Chain not included. It is approximately 2.5" long from top to bottom. Kyanite is a calming stone often used for meditation. It can be found all over the world, usually deep in the mountains. Color shifts from blue to green, depending on the light, and has an iridescent sheen (like that of a soap bubble). Very pretty in person. Questions welcome!