Hello morriphel24,
Welcome! That certainly is an interesting looking necklace. Do you know any of the history behind the necklace? Like about when it was gifted or purchased? The photosx are a little blurry, so the details are not as clear as they might be.
Are there tiny beads between the larger beads? The necklace looks to me to be of carved conch shell beads. Conch beads can have a mottled look with ivory and pink. These are not pearls, however.
Could you please take a few more photos, on a white paper towel, and use the macro (little flower) button on your camera. Please take a photo of the clasp also.
How lovely to have a special piece from your Grandmother! A true family treasure!