August Birthstone is Peridot

December Birthstone Turquoise

November Birthstone Topaz

October Birthstone Tourmaline (and Opal)

October Birthstone Opal (and Tourmaline)

September Birthstone: Sapphire

July Birthstone: Ruby

May Birthstone is Emerald

April Birthstone is a Diamond

March Birthstone is Aquamarine

February Birthstone is Amethyst

January Birthstone is Garnet