African/Indian boho cream/tan stone necklace with large, flat, oval beads gift

Necklace with large, flat, oval beads made of cream/tan colored stone 26.5" long - the largest bead is 1 3/4" x 1 1/4" and the smallest large beads are 1 1/4" x 7/8" My mother-in-law bought this while traveling in Africa and India, but I don't know the exact country it's from. I have more jewelry from her travels in my closet! Excellent condition, makes a great holiday/Christmas gift!