Name-Rashi (Zodiac sign), Ghati-Hour, Chinese Rashi (Zodiac sign) — Instant free calculation; 10+ more and Vedic tools below
The navaratna tradition gives each planet a gem: Sun-ruby, Moon-pearl, Mars-red coral, Mercury-emerald, Jupiter-yellow sapphire, Venus-diamond, Saturn-blue sapphire, Rahu-hessonite, Ketu-cat's eye. The rashi-based choice follows the sign's lord — which is what this calculator shows.
But the greatest classical rule is this: a gem amplifies its planet's rays — so before wearing, the chart must confirm that planet is your benefic, not a malefic for you. A benefic's gem is a blessing; a malefic's gem can harm (the blue sapphire above all). Metal, finger and weekday appear in the result.
Can I wear my rashi gem straightaway?
The rashi gem is a general pointer; the deciding test is the chart — sharp gems like blue sapphire, hessonite and cat's eye never without it. See your planets in the free kundali or take a consultation.
What carat weight should it be?
The folk formula says ~1 ratti per 12-15 kg of body weight; the real test is the stone's purity — a flawed big stone is worse than a clean small one.
How effective are substitute gems (uparatna)?
They are the gentle alternatives — slower in effect but same in direction; a clean substitute beats an impure primary gem on a budget.
Other calculators: 🌙 Moon Sign (Rashi) Calculator · ⬆️ Lagna (Ascendant) Calculator · ⭐ Nakshatra (Birth Star) Calculator · ☀️ Vedic Sun Sign Calculator · 🔤 Name Rashi Calculator · 📱 Mobile Number Numerology · ⏳ Ghati ↔ Hour Converter · 🕉 Ishta Devata Calculator · 🔯 Yantra Calculator · 🔱 Rudraksha Calculator · 🔴 Lal Kitab Kundali (Teva) Calculator · 🧭 Jaimini Calculator · 🐉 Chinese Zodiac Calculator · 📅 Varshaphal (Tajika) Calculator · 🕉 Prashna Kundali (Horary) · 🕐 Birth Time Rectification Assistant · 🔢 KP Horary (1-249)