When to wear a gemstone: the day and hora tradition assigns
By The Choghadiya Now Team · Published 16 September 2026
This page describes one thing: the timing the gemstone tradition assigns: which weekday and which hour belong to each stone, and why. It does not tell you whether to wear a stone at all. That is a reading of a birth chart, and a stone worn against the chart is held to do harm; nobody should choose one from a table on a website. Take the when from here and the whether from an astrologer who has seen your chart.
Every stone answers to a planet
The navaratna, the nine gems, are the nine grahas in mineral form. Each stone is worn to strengthen its planet, and the tradition times the wearing to when that planet is strongest in the ordinary day: its own weekday, in its own hour.
| Planet | Stone | Hindi name | Weekday |
|---|---|---|---|
| Sun (Surya) | Ruby | Manik | Sunday |
| Moon (Chandra) | Pearl | Moti | Monday |
| Mars (Mangal) | Red coral | Moonga | Tuesday |
| Mercury (Budh) | Emerald | Panna | Wednesday |
| Jupiter (Guru) | Yellow sapphire | Pukhraj | Thursday |
| Venus (Shukra) | Diamond | Heera | Friday |
| Saturn (Shani) | Blue sapphire | Neelam | Saturday |
| Rahu | Hessonite | Gomed | Saturday (Rahu has no weekday of its own) |
| Ketu | Cat’s eye | Lehsunia | Tuesday or Thursday, by tradition |
The seven planets that rule the weekdays have a clear day. Rahu and Ketu, the lunar nodes, do not, and traditions place them differently: Saturday for hessonite is the most common assignment, Tuesday or Thursday for cat’s eye. If your astrologer gives a different day for these two, follow that.
The hora: the planet’s own hour
The weekday is only half of the timing. Each day is also divided into twenty-four horas, planetary hours, each ruled by one of the seven planets in a fixed rotation, and the tradition asks that a stone be first worn in its planet’s hora on its planet’s day: Jupiter’s hour on a Thursday for yellow sapphire, Venus’s hour on a Friday for a diamond.
Here the arithmetic helps. The first hora of any day belongs to that day’s own planet (the hour after sunrise on a Thursday is Jupiter’s), and the rotation brings the same planet back every seven hours. So on its own weekday, a planet rules the 1st, 8th, 15th and 22nd horas of the twenty-four: the hour after sunrise, one in the early afternoon, and two at night. For a stone that wants daylight, that leaves two candidates, and the first, the sunrise hour, is the one most traditions name.
Because a hora is one twelfth of the real daylight, not sixty minutes, its clock time depends on the city and the date. In New Delhi on Thursday 17 September 2026, Jupiter’s first hora runs from sunrise at 6:06 AM to about 7:08 AM, and its second daytime hour from about 1:16 PM to 2:18 PM; in a city with a different sunrise both windows shift with it. The hora page shows all twenty-four for the city you choose, with each hour’s ruler named.
Putting the two together
The traditional sequence for a first wearing, as most sources give it:
- Choose the planet’s weekday from the table above.
- Choose the planet’s hora on that day: the hour after sunrise is the usual pick; the eighth hora of the day is the daytime alternative.
- Prefer a rising fortnight. Many traditions ask for the bright half of the lunar month (Shukla Paksha), when the moon is waxing, over the dark half.
- Prefer the stone’s own metal and finger: these are part of the same prescription, and they come from the astrologer with the stone.
- Avoid Rahu Kaal for the moment of wearing, as for any beginning. On a Thursday, Rahu Kaal is the sixth eighth of daylight, early afternoon in most of India, so the sunrise hora is clear of it, but check the day’s table rather than assume.
Where an astrologer has given an exact muhurat for the wearing, that overrides every general rule here; the table is for understanding the prescription, not replacing it.
Why the hour is thought to matter
The reasoning is the same one behind every timing on this site: a planet is held to be most present in its own periods, its day and its hour, and a thing begun then carries that influence. Whether one accepts the premise or not, the structure is consistent: the hora rotation that gives Thursday its Jupiter hour is the same rotation that gives Sunday its first choghadiya, and it can be computed for any city and date rather than looked up.
Which day and hour is yellow sapphire (pukhraj) worn?
Thursday, in Jupiter’s hora. The first hora after sunrise on a Thursday always belongs to Jupiter, so that is the hour most traditions name; the eighth hora of the day, in the early afternoon, is the daytime alternative. The clock times depend on your city’s sunrise, so take them from the hora page for the Thursday you have in mind rather than from a fixed “6 to 7 AM”.
What is the best time of day to wear a gemstone for the first time?
The planet’s own hora on the planet’s own weekday: Sunday’s first hour for a ruby, Monday’s for a pearl, Friday’s for a diamond, and so on down the table above. The hour straight after sunrise is the usual choice because it belongs to the day’s planet on every weekday. Keep the moment of wearing out of Rahu Kaal, as for any beginning, and check that day’s table rather than assuming the sunrise hour is clear.
Does the gemstone timing change with my city?
Yes. A hora is one twelfth of the real daylight, not a sixty-minute hour, so its start and length follow the local sunrise. Jupiter’s first hora on a Thursday in New Delhi runs from about 6:06 AM to 7:08 AM in mid September; in a city with an earlier or later sunrise the whole window moves with it. The weekday and the planet never change; only the clock time does.
Which day is for hessonite (gomed) and cat’s eye (lehsunia)?
Rahu and Ketu have no weekday of their own, so traditions place their stones differently. Saturday is the most common day given for hessonite, and Tuesday or Thursday for cat’s eye. If the astrologer who prescribed the stone gives a different day, follow that; the table on this page records the common assignment, not a ruling.
What this page does not do
It does not recommend a stone, a weight, a metal or a finger, and it does not promise a result. Gemstone prescription is individual (the same stone is advised for one chart and warned against for another), and the sources that describe the timing say so too. What can be stated for everyone is the calendar: the day, the hour, and where to find that hour for your own city on the hora page.
Today’s timings for this
This post describes what the panchang tradition says about a window; it is not personal advice. Times on the linked pages are computed for the city you choose.