The Lord dipped His hand into the water and pulled up a golden thimble set with sapphires.
Blue star sapphires are so named because of the distinctive mark found at their centre.
'Diamonds, rubies, sapphires?
But instead of a book, it was a work of art contained in a casket, an artificial nightingale made to look like a living one, and covered all over with diamonds, rubies, and sapphires.