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 12mm Cubes $3.90
Gemmato Extra-Large Discs $11.20
Gemmato 23mm Gold Discs $5.12
Klimt 21mm Foil Squares $4.98