What are the 15 gemstones that it identifies?

Jadeite vs. Chrysoprase Ruby vs. Spinel Ruby vs. Garnet Topaz vs. Aquamarine Topaz vs. Amethyst Topaz vs. Citrine Spinel vs. Garnet Gemstones vs. Glass Sapphire vs. Tanzanite Sapphire vs. Lolite Sapphire vs. Spinel Sapphire vs. Citrine Sapphire vs. Topaz Sapphire vs. Tourmaline Emerald vs. Jadeite