Belle Epoque Onyx and Diamond Ring

A study in contrast, where shadow gives way to light.

Created during the Belle Époque, circa 1910, this striking ring reflects the refined geometry and technical mastery that defined one of jewelry's most elegant periods. At its center rests a magnificent 1.90-carat old mine-cut diamond, bezel-set in platinum, its broad facets and gentle cushion outline producing the soft, romantic brilliance unique to antique diamonds. Surrounding the stone, a finely polished octagonal panel of black onyx creates a dramatic field of contrast, while a border of old-cut diamonds traces the outer edge with a continuous ribbon of light.

Crafted in platinum over 18-karat gold, the ring exemplifies the sophisticated metalwork of the era, when platinum allowed jewelers to achieve delicate yet enduring settings while warm gold remained hidden beneath. The crisp octagonal silhouette, balanced by the velvety depth of the onyx and the scintillation of the surrounding diamonds, gives the jewel a timeless architectural presence that feels as modern today as it did more than a century ago.

Elegant in proportion yet unmistakably bold, this is a ring that captures the Belle Époque's fascination with harmony, precision, and light.