Below you will find a list of birthstones.  You may have a few options when it comes to birthstones, so I have included a few alternative lists as well.  I believe in having the jewelry be visually appealing as well as meaningful! 

You always have the choice of natural or synthetic stones.  For example, if the birthstone you need is diamond, cubic zirconia can be used instead.  I am happy to quote you on both as well.

Modern Birthstones

January - Garnet
February - Amethyst
March - Aquamarine
April - Diamond
May - Emerald
June - Pearl
July - Ruby
August - Peridot
September - Sapphire
October - Opal
November - Topaz
December - Turquoise / Blue Zircon / Blue Topaz

Traditional Birthstones

January - Garnet
February - Amethyst
March - Bloodstone
April - Diamond
May - Emerald
June - Alexandrite
July - Ruby
August - Sardonyx
September - Sapphire
October - Tourmaline
November - Citrine
December - Turquoise

Cabochon Birthstones

(A cabochon is a stone that is rounded on the top and flat on the bottom - not faceted like a diamond.)

January - Garnet
February - Amethyst
March - Bloodstone
April - Mother of Pearl
May - Green Onyx
June - Moonstone
July - Jasper
August - Carnelian
September - Lapis Lazuli
October - Opal
November - Citrine
December - Turquoise

Zodiac Stones

Capricorn (Dec 22 - Jan 20) - Ruby
Aquarius (Jan 21 - Feb 21) - Garnet
Pisces (Feb 22 - March 21) - Amethyst
Aries (March 22 - April 20) - Bloodstone (Jasper)
Taurus (April 21 - May 21) - Sapphire
Gemini (May 22 - June 21) - Agate
Cancer (June 22 - July 22) - Emerald
Leo (July 23 - August 22) - Onyx
Virgo (August 23 - Sept 22) - Carnelian
Libra (Sept 23 - Oct 23) - Chrysolite (Peridot)
Scorpio (Oct 24 - Nov 21) - Aquamarine
Sagittarius (Nov 23 - Dec 21) - Topaz