Ancient African carnelian agate beaded necklace

Ancient African carnelian agate beaded and semi precious stone necklace. Clasp marked “925” per photos. My mother was an antique dealer in Detroit. This is her jewelry collection. The descriptions are hers from the tags she had attached to keep track of her things. She passed away three years ago. She was an expert, and admittedly I am not. I include a lot of photos taken in natural light so that you as experts can make an assessment. I am a busy working mom myself so I do not have time to answer questions. I am pricing these to sell. I hope this item from my moms collection can find a lovely home. She was a super cool lady.