List of Frontispiece stones
- Five Asteria—Star Sapphires, Ceylon
- Ruby—Asteria—Ceylon
- Sunstone, Perth, Canada
- Moonstone—with white light—Ceylon
- Moonstone—bluish chatoyancy—Ceylon
- Iris—Brazil, South America
- Alexandrite—Green, Ceylon
- Cat’s Eye—Ceylon
- Alexandrite—Red by artificial light—Ceylon
- Precious Opal—Hungary
- Fire Opal, Queretera, Mexico
- Black Opal—Lightning Ridge, New South Wales