Filigree (noun)

1. Delicate and intricate ornamental work, typically of metal and especially gold or silver, made by twisting thin wires together.
2. An object made of filigree work, such as a piece of jewelry.

Origin:

Early 17th century: from french filigrane, from italian filigrana, from filo "thread" + granare "to seed" (because of the resemblance of the delicate tracery to seed pearls).

Examples:

1. The necklace was made of filigree gold.
2. The filigree design on the mirror frame was very intricate.
3. The filigree work on the lampshade was very delicate.
4. The bracelet was made of silver filigree.
5. The filigree on the cake was made of sugar.