I cannot find the brand or anything really similar to these anywhere online. They are unopened, but old vintage; I believe they're 90's.
The pendants have silvertone sides and backs.
The second photo of each is my attempt to capture the color of the tiny rhinestones, which was difficult. They are the colors of the center of the pendant, but shine so much they appear to change color and not just in photos. The two colored pendants have both colors of rhinestones.
These were super popular with younger to preteen girls (maybe around 7-12?) Would make a great gift or stocking stuffer!