Publication: I believe this book was published in about 1969 or 1970.
Genre: Early teen to Pre-teen mystery, possibly bought from Scholastic Books
Plot: A young girl with the last name Duncan solves a mystery of some missing diamond jewelry. She ends up finding the thief, a lady new to town who goes everywhere with her poodle. The diamonds were hidden in the puff on the poodle’s head. Story takes place in the summer. One chapter in the book describes a garden party where the main character’s friend dresses in matching mother-daughter outfit with her mom. Main character appreciates her own mom as dressing in an “unfussy” way.
This is Meg and the Disappearing Diamonds, one of a series of books about Meg Duncan, young mystery-solver. Author is Holly Walker.
Thank you tons!!!! Been trying to figure that out for years, you are right!!
Meg and the Disappearing Diamonds? https://mondomolly.wordpress.com/2012/10/01/meg-and-the-disappearing-diamonds-meg-duncan-1-by-holly-beth-walker/
This is Meg and the Disappearing Diamonds by Gladys Baker Bond under the Whitman house pseudonym Holly Beth Walker published in 1967. This is the first book in the series of six Meg mysteries.
Guessing it’s “Meg and the Disappearing Diamonds” by Holly Beth Walker? Check here on LibraryThing for description: http://www.librarything.com/work/166766
Meg Duncan and The Mystery of The Disappearing Diamonds by Holly Beth Walker
This is “Meg and the Disappearing Diamonds” by Holly Beth Walker c. 1967