Tom Swift Among the Diamond Makers; Or, The Secret of Phantom Mountain - Victor Appleton - Bog

"Well, Tom Swift, I don't believe you will make any mistake if you buy that diamond," said the jeweler to a young man who was inspecting a tray of pins, set with the sparkling stones. "It is of the first water, and without a flaw." "It certainly seems so, Mr. Track. I don't know much about diamonds, and I'm depending on you. But this one looks to be all right." "Is it for yourself, Tom?"