Vintage Stauer Necklace Bracelet Earrings Set Blue Sparkling Stones Signed

Vintage Stauer Set Includes: Necklace, Earrings, Bracelet, Original Case. Colors: Navy blue stones with sparkle and gold tone spacers. Signed Stauer on necklace. Stauer has a history of making jewelry with natural stones and gems. I was not able to identify these stones of these set.