In Jyotish, opal is an upratna (substitute stone) for diamond, the gem of Venus (Shukra). White opal is the usual choice; fire, black, Australian or Ethiopian opals are varieties of the same stone, and their colour does not move them to another planet. Opal is worn when Venus is a helpful planet in the chart — for marriage, comfort, art and finances — after a full chart check.

Types of opal
| Type | Look | Use in Jyotish |
|---|---|---|
| White (milky) opal | White body with play of colour | The usual Venus substitute for diamond |
| Fire opal | Orange-red, often transparent | Sometimes worn for Venus; colour alone does not change the planet |
| Black opal | Dark body with bright flashes | Rare and costly; still a Venus stone |
| Australian / Ethiopian | Origin names, not separate planets | Choose for clarity and stability, not origin |
Who may wear it
- People for whom Venus is a benefic — commonly Taurus, Libra, Capricorn and Aquarius ascendants (for Capricorn and Aquarius Venus is the yogakaraka).
- During a Venus mahadasha or antardasha when Venus is well placed.
- Not by default for everyone: if Venus rules difficult houses for your ascendant, strengthening it can backfire.
How it is worn
- Silver or white-gold ring, on the ring or middle finger as advised.
- Friday morning, after washing in clean water; chant Om Draam Dreem Draum Sah Shukraya Namah 108 times.
- Opal is softer than most gems — avoid knocks and harsh chemicals.
Cautions
Opal is not a Moon, Sun, Mercury or Ketu stone in Jyotish; those planets have their own gems (pearl, ruby, emerald, cat’s eye). Choose any stone only after a chart reading, and remove it if you notice clear negative effects.
Check your own chart
A free kundli shows your Moon nakshatra, planets and dasha. For a full reading of how this applies to you, book a consultation.
Frequently asked questions
Which planet is opal for?
Venus — it is a substitute for diamond.
Is white opal a Moon stone?
No. The Moon’s stone is pearl; opal belongs to Venus.
On which day should opal be worn?
Friday, the day of Venus.
Who should not wear opal?
People for whom Venus is a malefic by ascendant, unless a reading advises it.
Part of our guide: Remedies & Gemstones →
Want to know how this applies to your own chart? A personal reading checks the whole kundli and the dasha first.
Book a Consultation · ₹5,100 WhatsApp Dr. SharmaThis article is offered as general guidance in the Vedic tradition. Astrology is a tool for reflection and is not a substitute for professional medical, legal or financial advice.
Start free: your free kundli and 90-page PDF — no signup, no login, no ads.