[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D.](https://indike.org/pramana/ins.science.bag-1997) › v1.c34.3 # History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c34.3 History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c34.3 - **Language:** English ### [v1.c34.3](https://indike.org/pramana/ins.science.bag-1997.v1.c34.3) Thus, the wearing of Nine Gems (Nava Ratna) viz; diamond (Hīrā), Ruby (Mānikya), Cat's eye (Vaiduryam), Pearl (Muktā), Zircon (Gomedha), Coral (Mūngā), Emerald (Markatam), Topas (Pukharāja) and Sappire (Nīlam) had attained astrological sanction amongst the Indians. - [Previous: v1.c34.2](https://indike.org/pramana/ins.science.bag-1997.v1.c34.2) - [Next: v1.c34.4](https://indike.org/pramana/ins.science.bag-1997.v1.c34.4) - [Up: v1.c34](https://indike.org/pramana/ins.science.bag-1997.v1.c34) --- Source: [https://indike.org/pramana/ins.science.bag-1997.v1.c34.3](https://indike.org/pramana/ins.science.bag-1997.v1.c34.3) · Pramāṇa