Worn by Sophia, the Wessex Countess Acquired in the early 21st century Value Approximation: $1.7 million* The Wessex Aquamarine Necklace, which is owned by Sophie, Countess of Wessex, is a contemporary example of royal glitz. The necklace features an amazing aquamarine pendant that is encircled by an endless amount of diamonds. Despite being a recent addition to the royal collection, this piece has made a big impression so far.
worn by Queen Victoria and Queen Adelaide. As of the early 19th century Value Approximation: $3.8 million* The Diamond Rivière Necklace is a captivating collection of 34 antique-cut diamonds that was once possessed by Queen Adelaide in the early 1800s. A single strand of diamonds, which was especially liked by Queen Adelaide and later by Queen Victoria, is featured in its exquisite and classic design.