Ruby Stone (Manik) The Ruby gemstone is also called Manik, Ratan Raja and is considered the king of gems. Apart from being one of the precious Jewlery pieces, it is famous for its astrological benefits too. The gemstone is associated with planet Sun and zodiac Leo. It was one of the most famous gemstones amongst the Kings and Queens.   Gemstone Composition Origin Ruby Natural Thailand Treatment Color Refractive Index Industry Accepted Treated Red 1.762 Cut Specific Gravity Weight (Carat) Mixed 3.98 – 4.00 3.57 Certification Return Policy Weight (Ratti) NGTL/KGTL 10 Days Money-Back Returns 3.25 Shape Exact Dimension Weight (Grams) Oval NA 0.65