What is June’s Birthstone? Discover the Meaning Behind Pearl, Moonstone & Alexandrite

June Birthstones: The Meaning of Pearl, Alexandrite, and Moonstone

June is the only month with three official birthstones: pearl, alexandrite, and moonstone. This unusual abundance comes from a 1912 decision by the American National Association of Jewelers to expand the traditional single-stone list and June benefited most, gaining both moonstone and the rare, color-changing alexandrite alongside its ancient pearl. Whether you were born in June, are shopping for a June birthday gift, or simply love the three stones themselves, this guide walks through the meaning, history, and modern uses of each.

The Three June Birthstones at a Glance

Pearl: The Traditional June Birthstone

The pearl is the oldest and most iconic June birthstone. It has been treasured across cultures for at least 5,000 years. Pearls have been recovered from Egyptian tombs, mentioned in the writings of Pliny the Elder, and worn by Roman empresses, medieval queens, and Elizabethan aristocrats.

What Pearl Symbolizes

Pearl represents purity, wisdom, calm, and inner beauty. In ancient Greece, it was thought to represent tears of joy from the goddess Aphrodite. In China, it was associated with the moon's healing power. In modern Western tradition, it is the symbol of a 30th wedding anniversary.

How Pearls Are Formed

Pearl is the only gemstone made by a living creature. It forms inside oysters, mussels, and other mollusks when an irritant, a grain of sand, a fragment of shell, becomes lodged in the animal's soft tissue. The mollusk secretes layer after layer of nacre (mother-of-pearl) around the irritant, and over months or years, a pearl grows.

Natural vs. Cultured Pearls

Natural pearls form spontaneously in the wild and are exceptionally rare. Most historical pearls were natural. Since the early 20th century, nearly all pearls sold as jewelry have been cultured, meaning a technician inserts a small bead into a mollusk to start the process. Cultured pearls are genuine pearls in every physical sense; they just have a human origin story.

Ireland's Own Pearl Tradition

Ireland once had a thriving freshwater pearl fishery. The Irish freshwater pearl mussel (Margaritifera margaritifera) produced pearls prized by medieval kings, and the great rivers of Kerry, Sligo, and Donegal were harvested for centuries. Environmental pressures have since made the species endangered, and Irish river pearls are now protected — but the tradition of Irish pearl jewelry lives on in modern reinterpretations.

Alexandrite: The Rare Color-Changing June Birthstone

Alexandrite is the youngest and rarest of the June birthstones. It was discovered in 1830 in the emerald mines of the Ural Mountains in Russia and named after the future Tsar Alexander II, who was celebrating his sixteenth birthday when the gem was found. It happened that the stone's two colors — green and red — were also the Russian imperial military colors, and alexandrite quickly became Russia's national gem.

The Color Change

Alexandrite's defining feature is its ability to change color depending on the light. In daylight or fluorescent light, it appears green, teal, or bluish-green. Under incandescent (warm) light — a candle, an old-style bulb, a lamp — it shifts to red, purple-red, or raspberry. Gemologists describe the strongest color-change alexandrite as "emerald by day, ruby by night."

What Alexandrite Symbolizes

Alexandrite is associated with balance, transformation, and adaptability — themes that echo its own ability to shift between two colors. It is the traditional gemstone of the 55th wedding anniversary.

Rarity and Value

Fine alexandrite is one of the rarest colored gemstones in the world. Original Russian material is nearly impossible to find on the market today; most modern alexandrite comes from Brazil, Sri Lanka, and East Africa. Even so, a natural alexandrite with strong color change can sell for more per carat than emerald or ruby.

Moonstone: The Ethereal June Birthstone

Moonstone joined the June birthstone list alongside alexandrite in 1912. It has a much older cultural history. Roman naturalists believed it was formed from solidified moonlight, and in Hindu tradition, it was considered a sacred stone imbued with lunar energy.

The Shimmer of Adularescence

Moonstone is a variety of the mineral feldspar. Its distinctive floating blue-white glow, technically called adularescence, comes from light scattering off microscopically thin internal layers. When you tilt a good moonstone, the glow appears to move across the surface like light on water.

What Moonstone Symbolizes

Moonstone represents intuition, feminine energy, new beginnings, and calm during change. Ancient cultures wore it as a talisman for travelers and gave it as a wedding gift to invite fertility and marital harmony. It is the traditional gemstone of the 13th wedding anniversary.

Why Does June Have Three Birthstones?

Most months have one birthstone. A few have two. Only June has three. Here is why.

The 1912 Standardization

Before 1912, birthstone lists varied wildly by country, culture, and jeweler. That year, the American National Association of Jewelers (later the Jewelers of America) published an official birthstone list to standardize the market. They added moonstone and alexandrite to June, pearl was already the traditional stone, because pearl supplies were becoming inconsistent, and the jewelry industry wanted more options for June-born customers.

Later Modifications

The list has been updated a handful of times since 1912. In 1952, spinel was added as an August alternative. In 2002, tanzanite was added to December. But June's three-stone lineup has remained unchanged for more than a century.

Which June Birthstone Is Right for You?

There is no single right answer — that is part of the appeal of having three. Some ways to choose:

•      For classic and timeless: Pearl. It suits every age, works beautifully in strung necklaces or stud earrings, and is a symbol of quiet elegance.

•      For someone who loves rare things: Alexandrite. Its color change is a genuine natural marvel, and it makes a striking piece of jewelry that reveals a new face indoors and out.

•      For a mystical or nature-loving aesthetic: Moonstone. Its shifting glow pairs perfectly with silver, and it carries centuries of spiritual and lunar symbolism.

•      For sentimental gifting: Pearl if the recipient is traditional; moonstone for a Zodiac-conscious Cancer; alexandrite for a milestone anniversary.

Frequently Asked Questions About June Birthstones

What are the birthstones for June?

June has three official birthstones: pearl, alexandrite, and moonstone. Pearl is the traditional stone, while alexandrite and moonstone were added in 1912. June is the only month with three official birthstones.

What is the traditional June birthstone?

Pearl is the traditional June birthstone. It has been associated with June births for centuries and remains the most popular and widely available of the three.

Why does June have three birthstones?

The American National Association of Jewelers added moonstone and alexandrite alongside the traditional pearl in 1912 when they standardized the official birthstone list. The addition gave June-born customers more options at a time when pearl supplies were becoming inconsistent.

What is the rarest June birthstone?

Alexandrite is by far the rarest. Fine natural alexandrite with strong color change is one of the world's most sought-after colored gemstones and can be worth more per carat than emerald or ruby.

What does the June pearl birthstone symbolize?

Pearl symbolizes purity, wisdom, calm, and inner beauty. In Western tradition, it is also the gemstone of the 30th wedding anniversary.

What does the June alexandrite birthstone symbolize?

Alexandrite symbolizes balance, transformation, and adaptability — reflecting the stone's own ability to change color between green in daylight and red in incandescent light. It is the traditional gemstone of the 55th wedding anniversary.

What does the June moonstone birthstone symbolize?

Moonstone symbolizes intuition, feminine energy, and new beginnings. It has been considered a protective talisman for travelers and a gift for newlyweds since ancient times.

Which zodiac signs are born in June?

June covers two zodiac signs: Gemini (May 21 to June 20) and Cancer (June 21 to July 22). All three June birthstones are worn by both signs.

June Birthstone Jewelry from The Irish Jewelry Company

Our June birthstone collection features pearl, alexandrite, and moonstone set into Irish and Celtic-inspired designs, Claddagh rings with pearl hearts, Celtic knot pendants with alexandrite centers, and moonstone earrings that catch the light like the surface of an Irish lake. Whether you are shopping for a June birthday, a milestone anniversary, or a wedding gift, our June birthstone jewelry connects the gemstone to a piece of Irish tradition.

About the Author

Jennifer Derrig is the founder and lead designer of The Irish Jewelry Company, where she pairs Ireland's traditional symbols with the world's most meaningful gemstones.