Here you can find a selection of Victorian earrings-transformers!
These unusual jewels were used in 2 ways. The first — to make your look different. During the day the lady could wear gold earrings, and in the evening shine bright with diamonds. The second — (suddenly!) security. Diamonds — more than gold — were markers of wealth. So, walking down the street or traveling in the carriage in shiny earrings, women risked to attract attention of robbers. This design was invented in America in the 1870s and 1880s.