What is the Pisces birthstone?

There isn't one settled answer. The traditional tropical zodiac (February 19 – March 20) names Amethyst; the modern jewelry-trade convention names Aquamarine instead. Both are sourced, dated lists — see the comparison table above.

Why do the two zodiac birthstone lists disagree for Pisces?

Pisces's traditional stone, Amethyst, comes from the historical February birthstone list — the month Pisces begins in. Its modern stone, Aquamarine, comes from the separate current monthly birthstone table instead. The disagreement between the two zodiac lists is really the historical list diverging from the modern one; each sign inherits that divergence from its date range.

What color is Aquamarine, Pisces's modern birthstone?

Aquamarine occurs in blue tones, with a Mohs hardness of 7.5–8.

Is my Vedic sign the same as Pisces?

Not necessarily. The sidereal zodiac used in Vedic astrology runs roughly 23 days behind the tropical zodiac, so a birth date in tropical Pisces often falls under sidereal Aquarius instead. We have not sourced Vedic birthstone assignments, so this concerns the sign only, not a stone recommendation.

Does having two ruling planets affect Pisces' birthstone?

No. Jupiter is Pisces' traditional ruler; Neptune became its modern ruler after Neptune's 1846 discovery. That dual rulership is a separate astrological convention from the birthstone question — Pisces' traditional stone (amethyst) and modern stone (aquamarine) both come from the monthly-list derivations described on this page, unrelated to which planet rules the sign.

Pisces Birthstones

Pisces doesn't have one settled birthstone. The traditional tropical zodiac assigns Amethyst; the modern jewelry trade assignsAquamarine instead. Both are attested, dated conventions — not ancient absolutes — and the comparison and sourcing below show exactly where each one comes from.

Pisces at a glance

Date range: February 19 – March 20
Element: Water
Modality: Mutable
Ruling planet: Jupiter (traditional) / Neptune (modern)
Polarity: Negative

Pisces birthstones by system

Both zodiac-birthstone systems for Pisces, side by side
Sign	Traditional tropical zodiacTraditional Western astrology	Modern jewellery-trade zodiacContemporary retail convention
Pisces	Amethyst	Aquamarine

Traditional tropical zodiac: This list derives from the historical monthly birthstone table keyed to each sign's starting month, so it inherits that table's lack of a single standardising source.

Modern jewellery-trade zodiac: This is a contemporary retail convention mapping the current monthly list onto zodiac date ranges — a 20th/21st-century commercial construct, not an ancient astrological tradition.

The stones themselves

Amethyst (traditional tropical zodiac)

Amethyst is a variety of Quartz. Mohs hardness: 7. Color: Purple.

Aquamarine (modern jewelry-trade zodiac)

Aquamarine is a variety of Beryl. Mohs hardness: 7.5–8. Color: Blue. Aquamarine is the blue variety of the mineral species beryl; emerald is beryl's green variety.

Why Pisces has two different stones

Pisces begins in February. The historical February birthstone list named Amethyst, Hyacinth, and Pearl, and Amethyst is the entry that carried through into the traditional tropical-zodiac list for Pisces — the same stone, tied to the month the sign begins in.

The modern jewelry-trade list works differently: rather than drawing on the historical table, it draws on the current monthly birthstone table instead. Pisces ends in March, and its modern stone, Aquamarine, matches the current US birthstone table for March — the month that holds most of Pisces's date range.

Western vs. Vedic: which sign are you really?

The dates above use the tropical zodiac, the system Western astrology — and this page — is built on. The sidereal zodiac used in Vedic (Jyotish) astrology runs roughly 23 days behind it, because it tracks the actual position of the constellations rather than the seasons. If you were born under tropical Pisces (February 19 – March 20), your sidereal placement is often Aquarius instead — especially for birthdays in the first few weeks of the range. We have not sourced Vedic birthstone assignments for Aquarius or any other sign, so this is a note about the sign shift only, not a birthstone recommendation.

Pisces birthstone FAQ

What is the Pisces birthstone?: There isn't one settled answer. The traditional tropical zodiac (February 19 – March 20) names Amethyst; the modern jewelry-trade convention names Aquamarine instead. Both are sourced, dated lists — see the comparison table above.
Why do the two zodiac birthstone lists disagree for Pisces?: Pisces's traditional stone, Amethyst, comes from the historical February birthstone list — the month Pisces begins in. Its modern stone, Aquamarine, comes from the separate current monthly birthstone table instead. The disagreement between the two zodiac lists is really the historical list diverging from the modern one; each sign inherits that divergence from its date range.
What color is Aquamarine, Pisces's modern birthstone?: Aquamarine occurs in blue tones, with a Mohs hardness of 7.5–8.
Is my Vedic sign the same as Pisces?: Not necessarily. The sidereal zodiac used in Vedic astrology runs roughly 23 days behind the tropical zodiac, so a birth date in tropical Pisces often falls under sidereal Aquarius instead. We have not sourced Vedic birthstone assignments, so this concerns the sign only, not a stone recommendation.
Does having two ruling planets affect Pisces' birthstone?: No. Jupiter is Pisces' traditional ruler; Neptune became its modern ruler after Neptune's 1846 discovery. That dual rulership is a separate astrological convention from the birthstone question — Pisces' traditional stone (amethyst) and modern stone (aquamarine) both come from the monthly-list derivations described on this page, unrelated to which planet rules the sign.

Sources

Retrieved 2026-08-10.