Joan Smith: Aunt Sophie's Diamonds

Aunt Sophie's Diamonds by Joan Smith was published by Fawcett in 1977. The diamonds of the title were owned by a tyrannical old aunt who took them, literally, to her grave. Claudia didn't care about the diamonds but she did care about Sir Hillary Thoreau!

Allan Kass features these diamonds in this illustration! We see the hero placing them around the heroine's neck and assume that they are the necklace of the title. The heroine's purple dress shows off the necklace while the room is a setting for her beauty.