Blue chalcedony is a beautiful crystal and is very good and encouraging open, honest communication. It assists in the balance between mind, body and spirit and is very adept at assisting multiple mental functions.
Read more here about the metaphysical properties of Blue Chalcedony.
You may, or may not, receive this exact pendant. The colour of the pendant may also be different (usually only slightly) to what is displayed on your device as different devices display colours in a diverse manner.