What Is My Zodiac Stone?
Aries Birthstone & Crystals: Diamond
♈ March 21 – April 19 · Diamond
Aries is the first sign of the zodiac, a Mars-ruled fire sign known for drive, courage and a short fuse. Its modern stone is diamond, the hardest material on Earth, a fitting match for a sign that does not back down. The traditional Aries stone is bloodstone, the dark green chalcedony flecked with red that Roman soldiers carried into battle.
Warm red and orange stones are the classic supporting crystals for Aries. Carnelian is traditionally carried for stamina and follow-through, red jasper for steady endurance when the initial burst of energy fades, and cool aquamarine is often suggested as a counterweight to help an Aries pause before acting.
Aries at a glance
- Dates: March 21 – April 19
- Element: Fire · Ruled by Mars
- Primary stone: Diamond
- Traditional stone: Bloodstone
- Supporting crystals: Carnelian, Jasper, Aquamarine
- Often described as bold, competitive, impulsive, energetic
How Ariess traditionally use their stones
- Wear diamond or carnelian when starting something new.
- Keep bloodstone in a pocket or gym bag for competitive days.
- Reach for aquamarine when you need to cool off before responding.
About Diamond
Diamond is the hardest known natural material, composed of carbon atoms in a crystal structure. It's the ultimate symbol of luxury and eternal love.
| Type | Precious Stones |
|---|---|
| Chemical formula | C |
| Mohs hardness | 10 |
| Crystal system | cubic |
| Luster | adamantine |
| Streak | None |
| Cleavage | Perfect octahedral |
- Hardest natural substance on Earth
- Takes 1-3 billion years to form naturally
- Can conduct heat 5 times better than copper
How to tell real Diamond at a glance
- Color: Colorless, Yellow, Blue, Pink, Black. Look at a clean, dry surface in daylight. Color zoning, banding or spots are as diagnostic as the hue.
- Luster: Adamantine. Fresh surfaces shine like glass; a dull surface usually means weathering, so chip or wet a corner.
- Transparency: Transparent. Hold a thin edge up to a bright light and note whether light passes through.
- Mohs hardness: 10. It scratches glass, steel and even quartz; only harder gems will mark it.
Other stones on this page
Frequently asked questions
What is the birthstone for Aries?
Diamond is the modern Aries stone and bloodstone is the traditional one. Because Aries spans March 21 to April 19, Aries birthdays also fall under the March (aquamarine) or April (diamond) birthstones.
What are the Aries dates?
Aries runs from March 21 – April 19. Cusp dates can shift by a day depending on the year and your time zone; if you were born on the boundary, check your birth time.
Can I wear a stone that isn't my zodiac stone?
Of course. Zodiac stone lists are traditions, not rules. Pick the stone whose look and story you like, then use StoneSnap's identify guides to make sure it is the real thing.
