These beads are called "Gemmato" beads because the small pieces of multicolored Murano glass, referred to as "frit", resembles gemstones; (such as rubies, sapphires and emeralds); and 24 karat gold foil.
Some people refer to these beads as "Klimt" style beads.
Gemmato Ovals, 24x14mm $6.40
Gemmato 12 MM Cubes $3.90
Gemmato 23mm Gold Discs $5.12
Klimt 21 MM Foil Squares $4.98