Hi,
Personally, I don't believe in birthstones - I figure they and similar reference lists were generated by people wanting to promote monthly sales etc.
I subscribe to the Chakra colours and choose several gemstones in the particular colour I wish to concentrate on - that way I'm not restricted to a single gemstone.
Maybe that's why I like Opals, allocated to Libra/October, my signs anyway.
It's the only gemstone that can contain all the colours of the rainbow - the colour choice is endless and that suits me to the ground.
A link with Opals has existed in my family since my maternal grandmother (my first relative of Australian birth) lived near the opal district of New South Wales and many other relatives in her line relocated to the opal district of Queensland....wish I visited them on fossicking trips those days!
So....don't limit yourself to one gemstone type or colour - but concentrate on how particular gemstone lores and legends affect your personal situations as they arise, that's what empowerment with gemstones is for.
I wish you a Rainbow.

my friend suffers from really bad migraines and insomnia.... she makes her own jewelry and inoticed that she uses alot of hemitite in most of her pieces... could the use of the hemitite be the cause of her migraines? cuase I mean I tried everything I could think of to help with her migraines.

I love amethyst, which officially seems to be the "February stone". I think this monthly stone thing is no good... you use the stone that you feel it helps you more. I am a Sag, and amethyst is helping me enormously. It has brought me good luck and loads of work - it's less than a month I have it and it's amazing. If you put amethyst under your pillow it will also help you to sleep soundly......

now i am confuses as to wear a stone acc to ur moonsign or sun sign?