Mid-Century Oversized Purple Star Sapphire Ring, 18K White Gold, circa 1950s

A cabochon this size turns the ring into sculpture as much as jewelry — the stone spans nearly the width of the finger, its high dome pulling light into soft, waxy sheets instead of the sharp flashes a facet would throw. Tilt it and a six-rayed star drifts across the surface, medium-strong in intensity, shifting between violet and plum depending on the light source. Purple star sapphires entered American mid-century cocktail jewelry as designers moved past traditional blue and red corundum toward stones valued for color rarity over brilliance; this ring's oversized proportions and unadorned bezel are typical of that moment. The 18K white gold mounting stays deliberately plain with a wide polished bezel, and a rounded shank; built to let the stone carry the piece without competing for attention. No faceting, no accent stones, just scale and color doing the work.

Size 5. Weighs 17.0 grams total. Interior of the shank shows light surface oxidation consistent with age; no maker's mark visible in photographs.