How many of us know about birthstones? Well, I started researching into the history of birthstones and found some interesting information.
As always, it all started with God and then man stepped in and diluted it....

When God gave Moses the instructions for building the tabernacle, He asked that they design a breastplate with 12 precious stones embedded in it because He wanted to always have the people of Israel presented to Him.
God was very clear in the purpose of the breastplate:
"So Aaron shall bear the names of the sons of Israel in the breastplate of judgment upon his heart when he goes into the Holy Place, to bring them in continual remembrance before the Lord." (Ex 28:29)
The design of the breastplate was very clear in Exodus 28:17-20: "You shall set in it four rows of stones: a sardius, a topaz, and a carbuncle shall be the first row; The second row an emerald, a sapphire, and a diamond [so called at that time]; The third row a jacinth, an agate, and an amethyst; And the fourth row a beryl, an onyx, and a jasper; they shall be set in gold filigree." (Amplified Bible)
Then in Revelation 21:19-20, we have: "The foundation [stones] of the wall of the city were ornamented with all of the precious stones. The first foundation [stone] was jasper, the second sapphire, the third chalcedony (or white agate), the fourth emerald, the fifth onyx, the sixth sardius, the seventh chrysolite, the eighth beryl, the ninth topaz, the tenth chrysoprase, the eleventh jacinth, the twelfth amethyst." (Amplified Bible)
I guess jewellers will know more about the details of each of these gem stones but that's not the point...let's move on to see what my research turned up (emphasis mine)...