Gemstone Calculator
Find whether a gemstone is suitable for your chart, why it is recommended, and which stones should be avoided. The calculator is safety-first: a weak planet is not automatically strengthened.
Enter birth details
Continue with these birth details
View your Vedic birth charts
Open Lagna, Navamsa, Moon, and Drekkana charts with the same birth details.
Check planetary strength
Measure Shadbala for the same birth details and see which planets meet their classical thresholds.
Convert ratti to carat
Convert gemstone weight between ratti, carat and gram, with pakki and kachi ratti conventions.
Find your birth tithi
Use the same birth details to find your janma tithi and the day your Hindu birthday falls on.
How gemstones are judged in Jyotisha
In Jyotisha, a gemstone is traditionally used to strengthen the planet connected with that gem. That is why the first question is not only which stone is popular, but whether strengthening that planet is appropriate for the birth chart.
Role of gemstones
Gemstones are treated as strengthening remedies. They should be approached carefully, especially for planets that are difficult, conflicting, or not currently supportive.
Scriptural basis
The chart judgment follows the Parashari astrology tradition, with attention to Lagna, planetary strength, Navamsa, dasha, and transits. Classical gem literature supports quality and defect awareness.
Why some stones are avoided
A weak planet is not automatically a good gemstone candidate. If a planet is harmful for the chart context, the safer advice may be to avoid that gem or defer the decision.
Gemstone calculator by date of birth and Kundli
Use this free gemstone calculator to check a lucky stone by date of birth, birth time, and birth place. The result is based on Kundli context, not only a birthstone chart, so it can explain when a gem is suitable and when a stone should be avoided.
Kundli gemstone recommendation
The calculator reviews Lagna, houses, Navamsa, Shadbala, dasha, and transits before suggesting a kundli gemstone. A weak planet can still be functionally harmful, so the chart context comes first.
Lucky stone by date of birth
Birth date alone can point to broad birthstone ideas, but a Vedic gemstone recommendation needs birth time and place because they affect Lagna, houses, Navamsa, and dasha timing.
Gemstone safety and quality
The result may recommend a primary gem, substitute gems, or no stone. For purchase decisions, check natural vs lab-grown origin, treatment status, and certificate details with the lab.
Navagraha gemstone catalog
The catalog maps planets to traditional primary gemstones and substitute gems. The chart decision still comes first: the planet must pass safety checks before a stone is suggested.
Ruby
Substitutes: Red Spinel, Garnet
Pearl
Substitutes: Moonstone
Red Coral
Substitutes: Carnelian
Emerald
Substitutes: Peridot, Green Tourmaline
Yellow Sapphire
Substitutes: Yellow Topaz, Citrine
Diamond
Substitutes: White Zircon, Opal
Blue Sapphire
Substitutes: Amethyst, Blue Spinel
Hessonite
Substitutes: Orange Zircon
Cat's Eye
Substitutes: Quartz Cat's Eye