Do you know what your birthstone is?

Mine is ruby.
Do you have a piece of jewellery with your birthstone in?
January is garnet.  Colour: purple/red mixture.  Associated with constancy.
February is amethyst.  Colour: purple.  Associated with sincerity.
March is bloodstone.  Colour:  green with red flecks.  Associated with courage.
April is diamond.  Colour: glasslike.  Associated with lasting love and innocence.
May is emerald.  Colour: green.  Associated with hope and success.
June is pearl.  Colour: pearly white.  Associated with health and purity.
July is ruby.  Colour: red.  Associated with love and contentment.
August is agate.  Colour: pale green.  Associated with marital happiness.
September is sapphire.  Colour: blue.  Associated with wisdom.
October is opal.  Colour: white with coloured flecks.  Associated with hope.
November is topaz.  Colour: yellow or brown.  Associated with fidelity.
December is turquoise.  Colour: greeny blue.  Associated with harmony.