This is a stunning natural clam pearl that measures 17.95 x 17.47 x 17.95mm and weighs 37.75 carats. The pearl has a button shape with fine silk flame — a prized quality in natural clam pearls. The pearl shows internal crazing. Please see photos
Undrilled and formed completely in the wild. This piece offers a grand impact for a statement pendant, collector display, or fine jewelry design project.
Size: 17.95 x 17.47 x 17.95mm
Weight: 37.75 carats
Color: White
Shape: Button
Luster: High
Condition: Undrilled
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Clam pearls are rare natural gems formed within giant clams, and are prized for their smooth, porcelain-like surface and flame patterns. Unlike nacreous pearls, they lack iridescence and instead display creamy white, ivory, or pale beige tones, often with a subtle satin glow that gives them a sculptural, organic presence.
Found primarily in the Indo-Pacific region, clam pearls are exceptionally uncommon and cannot be cultivated, making fine examples highly desirable among collectors. Their quiet elegance, natural rarity, and distinctive formation have earned them a place among the most refined and sought-after non-nacreous pearls in the world.