Which Gemstone should not wear together?

Astrologers say that people who wearing some gemstones together then provide some amazing powers to the wearer. However, according to the astrologer, who worn the gemstones together they should be entirely focused on peaceful planets. So, People would wear at-least two gemstones at the very same time unless the planets they reflect entered it into preferential relations. And, if any of the gemstones are conflicting the planets, then they can never wear both the gemstone at that time. we know there is two or more astrology in Indian i.e. Rahu & Ketu, that are associated with Hessonite stones and the cat's eye stones. Hessonite stone is a kind of pomegranate. And Astrologers are not suggested to combine to wear with the following gemstones:-