The Lucrezia is a 14 karat yellow gold flower brooch set with .27 total carats of diamonds.
The Jean is a 14 karat gold heart ring set with blue enamel. It was designed by Jean Schlumberger for Tiffany & Co.
The Harper is an 18 karat yellow gold ring set with a marquise diamond, ruby, and sapphire.
The Valentina is a Victorian era 14 karat yellow gold starburst brooch set with a diamond and seed pearls.