Pearl necklace and earrings

The necklace is in 9ct rose gold with a barrel clasp and is quite heavy. The pearl on the necklace has a pink hue, the earring are more white, so I don't think it is a set.
I believe the Earrings are Art Deco, but I'm not sure of the necklace as it's a belcher link chain with a barrel clasp which leads me to think that it might be Victorian.
The earrings have butterfly backs which were first used in the 1920s.
It is a simple piece of jewellery and I wear them often.
Many thanks for looking.