June Birthstone Pearl:
From Victorian Seed Pearls to Mid-Century Mabe
Pearl is the primary June birthstone, and pieces made before the 1920s almost always contain natural pearls worth significantly more than cultured equivalents.
Kokichi Mikimoto harvested the first cultured pearls in 1893, triggering a decades-long price collapse that turned antique natural-pearl pieces into finite, increasingly scarce survivors.
Victorian pearl jewelry relied on seed pearls sewn onto mother-of-pearl with horsehair, while Edwardian designers set pearls alongside diamonds in platinum garland mountings.
Mabe pearls, dome-shaped and grown against the shell interior, became the signature cocktail ring stone of the Mid-Century era (1950–1970) in bold gold settings.
Vintage pearl jewelry requires specific handling: aged nacre is more porous than new, old silk knotting fails invisibly, and ultrasonic cleaners can strip decades of surface luster in minutes.
Pearls predate every other gemstone in jewelry history. Long before anyone figured out how to cut a diamond, pearls were already being set into gold. They are the original June birthstone, and among the oldest materials in fine jewelry. But the pearl you find in a new department-store strand and the pearl you find in an 1890s Victorian ring are fundamentally different objects, formed under different conditions, carrying different value, and requiring different care.
That distinction is where things get interesting.
- Why Does June Have Three Birthstones?
- What Makes a Pearl in an Antique Piece Different?
- How Did Mikimoto's Cultured Pearl Change the Market?
- How Were Pearls Used in Victorian Jewelry?
- What Do Pearls Look Like in Edwardian and Art Deco Jewelry?
- Why Are Mabe Pearl Cocktail Rings a Mid-Century Signature?
- What About Alexandrite and Moonstone in Estate Jewelry?
- How Do You Care for Vintage Pearl Jewelry?
Why Does June Have Three Birthstones?
The modern birthstone list traces back to the National Association of Jewelers (now Jewelers of America), which standardized the assignments at its 1912 Kansas City convention. June got pearl and moonstone. In 1952, the Jewelry Industry Council added alexandrite as a third option, largely because natural alexandrite is so rare that jewelers wanted to offer alternatives when customers came in asking.
Pearl remains the traditional and most widely recognized June birthstone. It is also the only gemstone produced by a living creature, which puts it in a category entirely its own. Alexandrite and moonstone both appear in estate jewelry and are worth knowing about (more on that below), but pearls are the primary association, and where the depth lies for collectors.
What Makes a Pearl in an Antique Piece Different From a New One?
This is the question that separates a birthstone guide from a buying decision.
Before 1893, every pearl in every piece of jewelry was a natural pearl, formed without human intervention when an irritant entered a mollusk and nacre built up around it layer by layer over years. These pearls were rare, expensive, and the province of royalty and wealth. Then Kokichi Mikimoto harvested his first cultured pearls at Ago Bay, Japan, in 1893: five hemispherical (mabe) pearls, followed by fully round cultured pearls by 1905. Early cultured pearls were sold at roughly a 25% discount to natural pearl prices. Within a generation, they remade the market entirely.
For today's buyer, the implication is straightforward: a piece of estate jewelry made before the 1920s very likely contains natural pearls. Those pieces are not being made anymore, and the supply of natural pearls in old settings only moves in one direction.
How Did Mikimoto's Cultured Pearl Change the Market?
The Cartier mansion story illustrates the scale of the shift. In 1917, Pierre Cartier traded his building at 653 Fifth Avenue in Manhattan for Maisie Plant's double-strand natural pearl necklace of 128 pearls, the necklace valued at roughly $1 million against the building's $925,000 price. When Maisie Plant's estate went to auction in 1957, that same necklace brought approximately $181,000. Cultured pearls had made natural pearls common by association, even though the natural originals remained just as rare as they had always been.
The Marie Antoinette pendant, a natural pearl-and-diamond drop from the Bourbon Parma family, sold at Sotheby's Geneva in 2018 for approximately $36 million against a $1–2 million estimate. La Peregrina, Elizabeth Taylor's 50-carat natural pearl, brought $11.8 million at Christie's in 2011. These auction records reflect the growing recognition that antique natural pearls belong in a separate category from even the finest modern cultured strands.
How Were Pearls Used in Victorian Jewelry (1837–1901)?
Victorian jewelers favored pearls for sentimental and symbolic work, and the techniques they used look nothing like what you see in modern pearl jewelry.
Seed pearls, tiny natural pearls typically under 2mm, were the signature material. Victorian artisans sewed them onto mother-of-pearl backings using horsehair or silk thread, building intricate floral and geometric patterns one pearl at a time. The technique was extraordinarily labor-intensive, and most of it disappeared by the turn of the century as cultured pearls and faster production methods took over. Surviving seed pearl pieces have a texture and density that photographs poorly but is striking in person. The pearls are so small and so numerous that the effect is closer to textile than stone.
The other classic Victorian pearl combination is turquoise and pearl. Turquoise-and-pearl rings, brooches, and bracelets from this period pair the warmth of cabochon turquoise against the cool luster of natural pearls, almost always set in yellow or rose gold. These pieces turn up regularly in estate markets and remain some of the most wearable Victorian jewelry available.
What Do Pearls Look Like in Edwardian and Art Deco Jewelry?
The Edwardian era (1901–1915) produced what many collectors consider the most refined pearl-and-diamond jewelry ever made. Jewelers of this period worked in platinum for the first time at scale, and the metal's strength allowed settings so delicate they almost disappeared. Pearls were set alongside Old European cut and rose-cut diamonds in garland, lace, and bow motifs, the white of the pearl and the white of the platinum creating a unified tonal palette that looks cool and restrained. If you have ever seen an Edwardian pearl-and-diamond pendant or lavalier, you know the effect: the metalwork looks like it was drawn rather than fabricated.
Art Deco (1920–1935) shifted the vocabulary. Long pearl sautoirs became the decade's signature necklace, worn with dropped-waist dresses and falling to the navel. Pearls appeared in geometric brooches and earrings alongside onyx, coral, and calibré-cut sapphires. This is also the transitional period when cultured pearls began entering the market alongside naturals, so an Art Deco pearl piece might contain either type, and knowing which requires examination of the pearl itself (drill hole diameter is one indicator, as natural pearl drill holes tend to be smaller).
Why Are Mabe Pearl Cocktail Rings a Mid-Century Signature?
A mabe pearl (sometimes called a blister pearl) grows against the interior wall of the shell rather than free-floating in the mollusk's tissue. The result is a dome shape, flat on the back and domed on the face, which makes it ideal for ring and earring settings where a cabochon silhouette works better than a round sphere. Mikimoto's first 1893 harvest, notably, was mabe pearls. The round cultured pearl came later.
The Mid-Century era (1950–1970) made mabe pearls a cocktail ring staple. Jewelers set large mabe pearls, often 12mm to 16mm across, in bold yellow gold bezels and frames that emphasized scale. The appeal was the look of a large, luminous pearl at a price point well below what a round natural pearl of similar visual size would have cost. The settings tend toward sculptural: thick bezels, textured gold surrounds, occasionally accented with diamonds at the corners or in a halo.
These rings wear differently from round-pearl jewelry. The flat back sits flush against the finger, and the dome catches light in a broad, soft wash rather than the point-source flash of a faceted stone. The gold settings from this era have enough heft that the ring feels substantial without being top-heavy.
What About Alexandrite and Moonstone in Estate Jewelry?
June's other two birthstones both appear in antique and vintage pieces, though far less frequently than pearls.
Alexandrite is a color-change chrysoberyl, green in daylight and red-to-purple under incandescent light. It was first identified in Russia's Ural Mountains in the 1830s and was used by Fabergé and Tiffany in the late nineteenth century. Genuine alexandrite is among the rarest colored gemstones in the world, and estate pieces containing real alexandrite (as opposed to synthetic, which became available in the 1960s) command significant premiums. If someone offers you a "vintage alexandrite ring" at a moderate price, ask questions.
Moonstone, an adular feldspar that displays a floating blue-white sheen called adularescence, was a favorite of Art Nouveau designers including René Lalique and Louis Comfort Tiffany. They paired moonstone with enamel and organic gold forms in the 1890s and 1900s, creating some of the most distinctive jewelry of that movement. Moonstone is softer than most jewelry stones (6–6.5 on the Mohs scale, compared to 7 for quartz and 10 for diamond), so surviving Art Nouveau moonstone pieces in good condition are worth paying attention to.
How Do You Care for Vintage Pearl Jewelry?
Pearl care advice exists everywhere online. Most of it assumes new cultured pearls. Vintage pearls have additional vulnerabilities.
Nacre on older pearls is more porous. Decades of wear, storage conditions, and the natural aging of the organic material mean that vintage pearls absorb chemicals and moisture differently than new ones. Perfume, hairspray, and even prolonged skin contact with acidic perspiration can dull the luster over time. The standard advice to put pearls on last and take them off first applies doubly for estate pieces.
Silk knotting deteriorates invisibly. A pearl strand may look perfectly sound while the silk between the pearls has lost most of its tensile strength. The traditional restringing interval for regularly worn pearls is every one to two years, but for a vintage strand that has been in a drawer for decades, restringing before wearing is not optional. Old horsehair and silk become brittle, and the first sign of failure is usually the strand breaking across the back of the neck.
Skip ultrasonic and steam cleaners entirely. Both can damage aged nacre and loosen pearls from old adhesive settings (particularly in mabe pearl rings, where the dome is cemented to a mother-of-pearl backing). A soft damp cloth, wiped gently after wearing, is the safest approach. For anything beyond surface dust, bring the piece to a jeweler who works with estate jewelry.
Frequently Asked Questions
What is the traditional birthstone for June?
Pearl. It has been the primary June birthstone since the modern birthstone list was standardized in 1912. Alexandrite was added in 1952, and moonstone was on the original list alongside pearl.
Why does June have three birthstones?
The 1912 list included pearl and moonstone. The Jewelry Industry Council added alexandrite in 1952, in part because natural alexandrite is extremely rare and jewelers wanted to offer alternatives when customers asked for their June birthstone.
What is the difference between natural and cultured pearls?
A natural pearl forms without human intervention when an irritant enters a mollusk. A cultured pearl forms around a bead or tissue intentionally introduced by a technician. Both are real pearls. The distinction matters in estate jewelry because pieces made before the 1920s almost always contain natural pearls, which are rarer and more valuable.
How can you tell if pearls are real?
The tooth test (gently rubbing a pearl against the biting edge of a front tooth, where real nacre feels slightly gritty and imitation feels smooth) is a quick first check. For definitive identification, particularly distinguishing natural from cultured, X-ray examination or a gemological laboratory assessment is required.
What is the rarest June birthstone?
Alexandrite, by a significant margin. Fine natural alexandrite with strong color change is among the rarest gemstones in the world and commands prices that can exceed diamonds per carat.
Are pearls a real gemstone?
Pearls are classified as gemstones in the jewelry trade, though they are organic rather than mineral in origin. They are the only gem produced by a living creature.
What anniversary is associated with pearls?
Pearl is the traditional gift for the 3rd and 30th wedding anniversaries. The 13th anniversary sometimes carries a pearl association as well, depending on the list referenced.
How do you clean pearl jewelry without damaging it?
Wipe with a soft, slightly damp cloth after each wearing. Avoid ultrasonic cleaners, steam, chemical solutions, and prolonged water submersion. For vintage pearl jewelry specifically, avoid perfume and hairspray contact, and have strands professionally restrung before wearing if they have been stored for extended periods.
The design changed with every era, and the oldest pieces are not being made again.
Pearl is June's birthstone, but in estate jewelry it carries something the modern cultured strand does not: the specific design language of the era it came from. A Victorian seed pearl ring, an Art Deco sautoir, a Mid-Century mabe cocktail ring, each represents a different answer to the same question, and each was shaped by the materials, techniques, and tastes available at the time.
The natural pearls in the oldest of these pieces are finite. They are not being produced, and the jewelry around them reflects hands and methods that no longer exist.
Pearl Jewelry Across the Eras
From Victorian seed pearl rings to Mid-Century mabe cocktail rings, browse the full range of estate pearl pieces.
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