18ct yellow gold diamond blue enamel house style butterfly necklace p2939 this collection has been created to celebrate house style and has been inspired by deborah the dowager duchess of devonshires own insect jewellery collection given to her by andrew the 11th duke deborahs famous insect collection included moths caterpillars spiders wasps dragonflies beetles bees butterflies and even a grasshopper she used to wear the brooches pinned to her shoulder along necklines or acros