Dreweatts spotlights pearls, June’s timeless birthstone, ahead of auction

Dreweatts is turning June’s birthstone into a lesson in value as much as beauty. In its Fine Jewellery sale, a four-row natural pearl and diamond necklace shares the stage with a cultured pearl design, making the difference between ordinary and exceptional easy to read at a glance. The live online auction at Dreweatts 1759 in Newbury, Berkshire, opens at 10:30 BST on Tuesday, 16 June 2026, with 210 items on offer.

Why pearls still matter for June

Pearl is the traditional June birthstone, and June has an unusual advantage over most months: it has three birthstones, pearl, alexandrite and moonstone. That gives June shoppers room to choose between the soft glow of pearls, the color-change drama of alexandrite and the moonlit sheen of moonstone, but pearls remain the most emotionally loaded of the trio. They have long stood for purity, humility and innocence, which is why they still feel as appropriate for a milestone gift as for a collector’s box.

What sets pearls apart is that they are the only organic birthstone. They are formed by living mollusks rather than mined from the earth, which gives them a different kind of provenance than diamonds, sapphires or emeralds. For buyers, that matters because a pearl is not only judged by sparkle or size, but by how naturally it was created, how well it has aged and how carefully it has been matched to the rest of the jewel.

What Dreweatts is putting in front of buyers

Dreweatts says its auction includes an elegant selection of pearl jewellery, and the catalogued highlights show exactly how pearls can move between collector territory and wearable luxury. One standout is an early 20th-century four-row natural pearl and diamond necklace, the kind of piece that immediately signals rarity, formality and historical weight. Another is a sapphire, coloured sapphire, diamond and cultured pearl necklace, which shows pearls working in a richer, more contemporary color story rather than as a single-note classic strand.

The wider sale context matters too. Behind-the-scenes coverage of the same auction also points to other notable jewels, including diamond-set leaf earrings by Van Cleef & Arpels, which places the pearls in a broader fine-jewellery conversation rather than a niche pearl-only sale. That is useful for readers because it underlines a reality of the market: pearls compete not only with other pearls, but with well-known signed jewels and period pieces that draw the same collector attention.

Natural versus cultured: the price divide that still counts

If there is one phrase that changes the economics of a pearl lot, it is “natural.” Natural pearls are the rarest and most expensive because they form without human interference. For centuries, that rarity made fine natural pearls almost mythic in value, prized long before modern cultivation made pearls more accessible. In auction language, “natural” is not a decorative word. It is the difference between geological accident and human-guided production, and buyers pay for that difference.

Cultured pearls changed the market. The first steps toward pearl culturing go back hundreds of years in China, but Japanese pioneers produced whole cultured pearls around the beginning of the 20th century, and cultured pearls became commercially important in the 1920s. Today, cultured pearls account for the vast majority of pearl sales, which is why most modern pearl jewellery is not rare in the same way a natural pearl necklace is rare. That does not make cultured pearls lesser, but it does make them easier to access, and usually less expensive than a comparable natural pearl jewel.

For a buyer, that distinction should be the first question asked when a pearl piece is presented as special. Is the pearl natural, cultured, or a mix of both? The answer should be clear in the cataloguing, and if it is not, the price deserves skepticism.

What justifies the price in a pearl jewel

Auction-house language can sound romantic, but the practical question is always the same: why does this piece cost what it does? In pearls, the answer usually comes down to four things.

• Origin: Natural pearls command the greatest attention because they are formed without human intervention. Cultured pearls are far more common and should be priced accordingly.

• Size and presence: Larger pearls are not automatically better, but size matters when it is paired with a strong visual presence, especially in a multi-row necklace.

• Luster and surface quality: A pearl’s glow is its soul. Strong luster gives the surface depth and life, while dullness, pits or an uneven finish quickly drag down value.

• Matching and composition: In strands and multi-row necklaces, the pearls need to look like they belong together. Uniform color, shape and sheen are essential, and the diamonds, sapphires or other gems around them should support the design rather than fight it.

The early 20th-century four-row natural pearl and diamond necklace likely earns its place through a combination of rarity, age and the difficulty of assembling a coherent multi-row jewel from natural pearls. The sapphire, coloured sapphire, diamond and cultured pearl necklace shows the other side of the equation: cultured pearls can still look elegant and luxurious when the design, color harmony and craftsmanship are strong.

How to read a pearl sale like a collector

For June birthstone buyers, the smartest pearl purchase is rarely the flashiest one. It is the piece that tells a convincing story and can prove it. A pearl necklace with clear natural origin, period attribution and good matching will usually carry more weight than a similar-looking strand with vague descriptions and no meaningful history.

If you are buying for an heirloom, the details to look for are straightforward:

• a clearly stated natural or cultured origin
• evidence of strong luster and even matching
• a coherent design that suits the pearl type
• period or maker context when it exists
• documentation that makes the jewel easy to identify later

That is where an auction like Dreweatts becomes valuable beyond the hammer price. It shows that pearls are not all interchangeable, and that the market still rewards the pieces with rarity, clarity and graceful construction. June may have three birthstones, but when the pearl is natural, well-matched and beautifully set, it remains the one that best turns sentiment into something collectable.