Art Deco Revival 10K Black Onyx and Old Mine Cut Diamond Mourning Ring

Black onyx set with a Victorian-era diamond that predates its own setting—a mid-century American jeweler recycling the past into their present. The old mine cut was likely salvaged from a damaged Victorian piece during the 1940s-50s, when wartime scarcity made repurposing precious stones standard practice. At 0.02 carats, the diamond barely registers on modern scales, but its hand-cut facets and squared-off shape mark it as genuine pre-1920s craftsmanship, shaped before electricity made precision possible. The diagonal stripe across the onyx follows the initial ring tradition, though here the stripe itself becomes the monogram—abstract decoration rather than actual letter. Cast in 10K gold when American jewelers were working within post-war metal restrictions, building pieces meant to last on half the gold content of their European counterparts. GIA Graduate Gemologist verification confirms what the old mine cut already tells—this is genuine period work, not reproduction.

Built like an heirloom, wears like a statement.

• METAL: 10K gold (American standard)
• WEIGHT: 3.40 grams
• SIZE: 5.75 US
• RESIZING: Not recommended due to vintage construction
• HALLMARKS: "10K" — standard American gold marking