The Necklace was created in 1884.
The Queen's Necklace was created in 1849.
The Sapphire Necklace was created in 1867.
The Indigo Necklace was created in 1945.
The Stolen Necklace was created in 1933.
Semley's Necklace was created in 1964.
Woman with a Pearl Necklace was created in 1665.
Diamond Necklace - film - was created in 2012.
The Affair of the Necklace was created on 2001-11-30.
The Red Necklace was created on 2007-10-04.
"The Mystery of the Missing Necklace" was first published in 2001.
Someone can get unique necklace designs created from a number of companies such as those from the Amazon marketplace website. The marketplace has a wide number of necklace designers that provide custom created necklaces.
The story of the "Heart of the Ocean" necklace in the movie Titanic is fictional and was created for the film's narrative. There is no historical evidence that such a necklace or similar story existed on the actual Titanic.