There isn't any gemstone in P.E.I. Why?
Girls wear caps to school for the same reasons boys do. They could just like to wear caps, they might be on a sports team, or any variety of reasons, but mainly they wear them because they want to.
I wouldn't say that any gemstone is unsuitable for any particular zodiac sign. The gemstone Sardonyx is ruled by Virgo.
A diamond is a gemstone.
Lapis
Yes there is it is Diamond
By mining the same as any gemstone
The best
No, unless you wanted to wear a kipah (head cap) for religious reasons.
Not mines, but Topaz, the Texas state gemstone, is found in stream beds in the central Texas Hill Country.
Many companies such as Zales, Kays, and Jareds have a lot of information on gemstone necklaces and can answer any questions you have. You can also find some information on their websites and a site called Gemstone Advisor.
One can purchase gemstone bracelets from various websites like Amazon or eBay. One could also visit a local accessories store and ask if they have any gemstone bracelets for sale.