Precious and alternate birth stones

There are only four precious gemstones: Diamond, Emerald, Ruby, Sapphire--the unique birthstones for April, May, July and September. Five other months--June, August, October, November and December have one or more alternate semiprecious birthstones.

June--Pearl, red

Aug --Sardonyx, Spinel, blue

October--Opal, green

November--Topaz, orange

December--Blue topaz, Turqoise, Zircon--purple

See my Birthstones for the main choices.