non-nacreous pearls

A large, white, baroque-shaped Giant Clam Pearl showing a distinct flame structure.

Giant Clam Pearls: What Every Buyer Needs to Know

Gemology, Pearl Guides /

Introduction Giant Clam Pearls rank among the rarest natural gems on Earth. Most people have never heard of them; yet some of the biggest pearls that explorers found came from giant clams rather than oysters. Whether you spotted one at a specialty market or found a curious listing online, you must understand what makes these gems unique. Specifically, […]

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Natural pearls can form in many mollusks.

Discover Conch, Melo & Rare Pearls Beyond Oysters

Gemstones, Jewelry Education, Pearls /

Summary Most people think pearls only come from oysters, but nature offers much more. Rare natural pearls form in conch, melo, abalone, clams, and scallops. Knowing about these pearls helps collectors, jewelers, and buyers recognize unique gems. Pearls Beyond Oysters People often associate pearls only with oysters. However, rare natural pearls can form in several

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