Hard insects like beetles could be treated like gemstones and prong set into jewelry. Scarab beetles (Scarabaeidae) are very common colorful beetles and were often used. Bright green metallic wood-boring beetles (Buprestidae) were and still are used for jewelry. Another very large family of beetles with many colorful members is the leaf beetles (Chrysomelidae).

Butterfly wings could be made into jewelry, usually set under glass. The most common butterfly wing to be made into jewelry is that of the Morpho butterfly of South America. These butterfly wings are an iridescent blue even after years because the wings are covered with prisms which continue to split up light even after death. These pieces are often purchased as a souvenir of a trip to Rio and are usually found in silver or silver tone. Thomas L. Mott of England made sterling real butterfly wing jewelry from the Victorian period into the 1920's. This sterling English butterfly wing jewelry exploded in popularity after 1924 when it was exhibited at the British Exposition. This jewelry is an example of the jeweler's creativity in using materials other than gemstones to make beautiful, colorful jewelry.