The Louisa is an antique bar pin from the Victorian era that features a yellow topaz set in 14 karat yellow gold.
The Jean is a 14 karat gold heart ring set with blue enamel. It was designed by Jean Schlumberger for Tiffany & Co.
The Cleo is a 14k yellow gold chain link bracelet.
The Helena is a 14k yellow gold rose shaped brooch set with a 0.10 carat ruby at the center.