Very pretty, and carefully made.
I've had these for more than 30 years, bought them at a thrift store, and don't know what they are.
Some part of costume jewelry?
Don't match: One's blue enamel with 6 red facet stones surrounding a pearl. The other is the same blue enamel, 3 red stones and 3 turquoise colored stone and a pearl. The red stones aren't as dark as they are in the pictures.
They measure about an inch in diameter and weigh 12 grams total.