neelam died leaving her estate to her cousin Mary. At time of her death.Neelam owned a diamond ring that was originally purchased by her grandma for 5000 dollars . When Bertha died the ring was passed to Neelam father. At the time of her death the ring was worth 10000 dollars he spent 700 to have the ring remounted. It was valued at 13000 dollars at the time of his death. At Neelam death the ring was worth 18000. Mary basis in the ring is