Natural Drusy Agate Gemstones of Druzy Small Grains Quartz with Various Colors are they worth for Jewelry?

I was exploring the Gemstones Quality which are used in the Modern Jewelry Nowadays and have the questions of the Natural Drusy Agate Gemstones of Druzy Small Grains Quartz with Various Colors is it last shining for the Jewelry and What are their investment benefits like the brand nathaan-gem-jewelry is selling- have any people know?