Birthstone List with descriptions
Garnet- usually dark red in color
Amethyst- usually light purple in color, frequently translucent
Aquamarine- a light aqua blue to teal, frequently translucent
Secondary stone is bloodstone- a dark green to black stone with red spots of iron oxide mixed throughout
Diamond- a clear, translucent, ideally colorless stone
Emerald- a deep green stone, frequently translucent
Pearl- not a true stone. While pearls come in other colors the one used as a birthstone is a white sphere of calcium oxide made by a clam or other mollusk in response to an irritant. They can be scratched or damaged easily so some people use the secondary stone to be more lasting.
Secondary stone is moonstone- also called hecatolite, it is a pearly colored stone with a rainbow colored sheen.
Ruby- a light to deep red stone, frequently translucent
Peridot- a light green and olive colored translucent stone
Sapphire- A translucent stone that comes in many colors including blue, pink, yellow, green, orange, and brown. The one commonly used for birthstones is dark blue in color.
Opal- Often described as fiery, it is a white stone with a rainbow shimmer.
Citrine- A translucent yellow stone
Tanzanite- An indigo colored translucent stone that can frequently have a white cloud or snow like shimmer to it.