Nana's Gift — Janette Oke

The Enchanting Story of a Family Treasure That Becomes a Legacy
It had all begun on their honeymoon. Lizzie had been so young then. Young and vibrant and beautiful. And now she was still beautiful in Duncan's eyes. Perhaps even more so. He loved his Lizzie. She had stood by him through the good and the bad. Someday, as soon as he could manage it, he was determined to get her something really special. Something that would speak of her true worth and his deep love.
A string of perfectly formed pearls it would take Duncan years to save the money required to purchase them. But his carefully kept secret, his sacrificial gift, becomes a symbol of the family legacy. And with the passing of time, for their last great-granddaughter who has a very special need, the pearl necklace will take on extraordinary value.