A childhood memory re-lived

When I was 9 or 10 years old, my mom and I were temporarily separated while she tried to establish a home for a single mom, not an easy task for a woman in the late 50s or early 60s. I saw a necklace and jewelry set at a local store that I thought was so beautiful I had to buy it for my mom. I worked at odd jobs, trying to earn enough money to buy it for her and mail it from Michigan to Arizona. The last little bit of money that I needed was provided by my grandfather who gave me $30.00 for polishing his dress shoes. Mom passed away in September and as I was looking through her jewelry box, there it was, as beautiful and sparkly as ever. This set of HOBE jewelry consists of a 3-strand crystal necklace and a pair of round crystal clip on earrings.

I've added 3 more photos of the set because PhilDavid was correct. The original photo does not represent the crystals' color very well. They are kind of crazy though because they pick up so many different colors. Green is not predominate but colors depend on backgrounds and lighting. Can anyone tell me more about Mom's Hobe necklace and earrings? I am new to and naive about Hobe jewelry. I'm still that little girl who just thinks it's pretty!