Delicacy (noun)

1. A food that is considered rare or expensive and is highly valued for its flavor or other special qualities.
2. Something that is very pleasing to the senses or mind, especially something that is a pleasure to see, hear, or taste.

Origin:

Delicacy comes from the latin word delicatus, meaning "delicate," and delicia, meaning "pleasure", it was adopted in english in late 16th century.

Examples:

1. Caviar is considered a delicacy in many parts of the world.
2. Truffles are a delicacy and considered a culinary treasure.
3. Eating sushi is a delicacy for many people.
4. The opera was a musical delicacy for the ears.
5. The chef prepared a delicacy for dessert, a souffle.