2027 Forecast

January 20 – February 18 · Air

Aquarius birthstones

Aquarius carries Amethyst and Garnet in the zodiac tradition.

US births under Aquarius
7.93% rank 11 of 12 signs
Born in February
60.3% of Aquarius births
Fine for a daily ring
2 of 2 Amethyst, Garnet

US SSA births 2000–2014 (FiveThirtyEight); our gemstone reference.

More on Aquarius: the Aquarius sign, Aquarius horoscope today and Aquarius compatibility.

The signs either side: Capricorn birthstones and Pisces birthstones.

Aquarius Birthstone: Amethyst and Garnet and What They Mean

Amethyst

Composition Silicon dioxide (SiO₂) — quartz colored by iron and natural irradiation
Hardness · System 7 · Trigonal

Amethyst fades in sunlight. Heat it and it turns yellow — most commercial citrine is heat-treated amethyst.

Traditionally associated with clear thinking, restraint and calm; the classic stone of sobriety.

Garnet

Composition Group of silicate minerals — almandine, pyrope, spessartine and others
Hardness · System 6.5–7.5 · Cubic

Garnet is not one mineral but a family. Almandine gives the familiar deep red; tsavorite garnet is green and rarer than emerald.

Traditionally carried by travelers as a stone of safe return, and long associated with vitality and steady energy.

The reasoning

Why Aquarius gets Amethyst and Garnet

Aquarius is ruled by Saturn in the old scheme and by Uranus in the modern one, and its stones mirror that pairing of discipline and independence. Amethyst, the February stone, keeps a cool head for a sign that lives in ideas. Garnet, which Aquarius shares with January, grounds it with steady energy and loyalty to friends — the relationships Aquarius values most. The combination reads as idealism with stamina: a mind that runs ahead, and the endurance to keep pace with it.

Other stones often given to Aquarius

Aquamarine Fluorite Labradorite

Two systems, one birth date

Aquarius spans 2 calendar months, so you have more than one birthstone

Zodiac stones Amethyst, Garnet
Months it covers January and February
Stones of those months Garnet, Amethyst
In both systems Amethyst, Garnet

January 20 – February 18 — so the sign opens in one month and closes in another. Why the two lists never line up → · The monthly chart →

Aquarius splits more evenly than most signs, but February still holds the larger part, 18 days to 12, and with it Amethyst, the February stone. Births follow the calendar closely here: in 2000–2014, January took 39.7% of the sign’s US births for 40.0% of its days.

In the monthly chart, Amethyst is February’s modern birthstone; Garnet is January’s modern birthstone. Both months fall inside Aquarius, so here the two systems agree.

January Garnet February Amethyst

The stones themselves

Stone Mohs Crystal system Main sources
Amethyst 7 Trigonal Brazil, Uruguay, Zambia
Garnet 6.5–7.5 Cubic India, Brazil, Madagascar

Amethyst (7) suits an everyday ring if you watch for direct sunlight, which fades the purple for good; so does Garnet (6.5–7.5), where the thing to watch is chipped facet edges on the softer species. What the scale means →

Aquarius birthstones on the Mohs hardness scale
Aquarius birthstones on the Mohs hardness scaleMohs scale with the Aquarius zodiac stones (Amethyst 7, Garnet 6.5–7.5) filled and the stones of its calendar months outlined.Amethyst: Mohs 7Amethyst 7Garnet: Mohs 6.5–7.5Garnet 6.5–7.5Garnet: Mohs 6.5–7.5Amethyst: Mohs 7Citrine: Mohs 7Rose Quartz: Mohs 7Clear Quartz: Mohs 7Smoky Quartz: Mohs 7Aquamarine: Mohs 7.5–8Emerald: Mohs 7.5–8Bloodstone: Mohs 6.5–7Peridot: Mohs 6.5–7Sardonyx: Mohs 6.5–7Zircon: Mohs 6–7.5Carnelian: Mohs 6.5–7Onyx: Mohs 6.5–7Agate: Mohs 6.5–7Tiger's Eye: Mohs 6.5–7Aventurine: Mohs 6.5–7Diamond: Mohs 10Pearl: Mohs 2.5–4.5Alexandrite: Mohs 8.5Moonstone: Mohs 6–6.5Labradorite: Mohs 6–6.5Pyrite: Mohs 6–6.5Ruby: Mohs 9Sapphire: Mohs 9Spinel: Mohs 8Topaz: Mohs 8Opal: Mohs 5.5–6.5Rhodonite: Mohs 5.5–6.5Tourmaline: Mohs 7–7.5Turquoise: Mohs 5–6Lapis Lazuli: Mohs 5–6Hematite: Mohs 5–6Tanzanite: Mohs 6–7Jade: Mohs 6–7Obsidian: Mohs 5–5.5Malachite: Mohs 3.5–4Amber: Mohs 2–2.5Selenite: Mohs 2Fluorite: Mohs 4Sodalite: Mohs 5.5–6Kyanite: Mohs 4.5–7Lepidolite: Mohs 2.5–31Talc2Gypsum3Calcite4Fluorite5Apatite6Orthoclase7Quartz8Topaz9Corundum10Diamondfingernail 2.5window glass 5.5household dust (quartz) 7Source: Mohs scale minerals · ranges from our 43-stone referenceastrohot.com
Aquarius birthstones on the Mohs hardness scaleMohs scale with the Aquarius zodiac stones (Amethyst 7, Garnet 6.5–7.5) filled and the stones of its calendar months outlined.Amethyst: Mohs 7Amethyst 7Garnet: Mohs 6.5–7.5Garnet 6.5–7.51Talc2Gypsum3Calcite4Fluorite5Apatite6Orthoclase7Quartz8Topaz9Corundum10Diamondfingernail 2.5glass 5.5dust 7Source: Mohs scale minerals · ranges from our 43-stone referenceastrohot.com

Aquarius’ zodiac stones: Amethyst 7, Garnet 6.5–7.5. Amethyst stays at 7 or harder across its whole range, so dust cannot scratch it.

Cite this page

AstroHot. “Aquarius Birthstone: Amethyst and Garnet and What They Mean.” Accessed October 27, 2026. https://astrohot.com/birthstones/by-zodiac/aquarius/

For Wikipedia {{cite web |title=Aquarius Birthstone: Amethyst and Garnet and What They Mean |url=https://astrohot.com/birthstones/by-zodiac/aquarius/ |website=AstroHot |access-date=2026-10-27}}