In Exodus 28:15, God appointed Aaronas the High Priest and instructed him towear a breastplate mounted withtwelve different gemstones to represent the twelve tribes of Israel.Before taking decisions, the Israelitesconsulted the breastplate. If the stonesglittered, God was in favor. If they grew dull, it signified God's disapproval. The sages of the agesbelieve that gemstones possessspiritual powers. The modernbirthstones originate from Aaron's breastplate.These pieces of jewelry are mounted with quality gemstones handset with professional skill in sterling silver.