Vintage-Style Marcasite and Black Onyx Art Deco Pendant
Pendant · Two-tone or Antiqued finish; suggests a yellow gold wash or plating over a silver base (Vermeil) or naturally aged silver with warm patina/dirt accumulation.
Purity: Likely Sterling Silver with gold-wash or aged patina; visible as silver-toned base metal. If gold, typically 9K (375) or 14K (585) in specific Art Deco revivals, but visual indicators suggest silver-based marcasite jewelry.
Type
Pendant
Purity
Likely Sterling Silver with gold-wash or aged patina; visible as silver-toned base metal. If gold, typically 9K (375) or 14K (585) in specific Art Deco revivals, but visual indicators suggest silver-based marcasite jewelry.
Gold Type
Two-tone or Antiqued finish; suggests a yellow gold wash or plating over a silver base (Vermeil) or naturally aged silver with warm patina/dirt accumulation.
Weight
3 to 5 grams
Description
An elegant Art Deco inspired pendant featuring an architectural cage-style metal overlay across a smooth, dark black onyx cabochon. The metalwork is densely packed with glittering marcasite stones, topped with a heart-shaped bail for a touch of romanticism.
Key Features
Architectural tiered metalwork, heart-shaped bail, milgrain edging, and the combination of black onyx with iron pyrite (marcasite) for a 'gothic' sparkle.
Color & Finish
Antiqued/Oxidized finish with areas of pale yellow gold-tone luster. Surface features high-relief textures and milgrain detailing with a notable dark patina in crevices.
Hallmarks & Stamps
Usually found on the back of the pendant or the bail. Expected stamps would be "925" for sterling or "14K" if solid gold. No stamps are visible in the top-down photo.
Dimensions Estimate
Approximately 25mm in length (including bail) and 12mm in width.
Gemstones & Inlays
Centerpiece is a polished Black Onyx cabochon. Accented with numerous rose-cut Marcasite stones (iron pyrite) set in a pave/bead style.
Clasp & Closure
Fixed bail in a heart-shaped decorative design, intended for a snake or link chain.
Chain & Links
N/A - Pendant only. Bail shows a standard jump ring connection to the main decorative body.
Craftsmanship Details
Cast metal construction with hand-set marcasite stones. Features milgrain texturing which is a hallmark of the Deco aesthetic, likely mass-produced via lost-wax casting.
Authentication Indicators
The characteristic metallic luster and rose-cut of the small stones indicate genuine marcasite rather than glass. The yellow tint is likely aged plating or environmental tarnish on silver.
Origin & Maker
Likely Thailand or Germany, which were major hubs for marcasite jewelry production in the late 20th century.
Era & Period
Art Deco Revival (late 20th century). While the style is 1920s-1930s, the casting and bail assembly suggests a 1980s-1990s production of vintage designs.
Age Estimate
Circa 1970-1990
Cultural Significance
Represents the 'Gothic Revival' and 'Art Deco' trends that resurfaced in the late 20th century as a response to minimalist modernism.
Condition Notes
Good vintage condition. Minor surface oxidation; all marcasite stones appear present. No visible chips in the onyx.
Value Estimate
$40 - $120 depending on metal content. If silver-based, value is primarily aesthetic collectors' value; if solid 14K gold, value increases to $250+.
Care & Maintenance
Do not use ultrasonic cleaners or harsh chemicals as they can loosen marcasite glue. Clean with a soft, dry silver polishing cloth only.
Similar Items
Victorian mourning jewelry, Art Deco diamond-and-onyx pendants, and 1930s German Silver marcasite brooches.
Interesting Facts
Marcasite jewelry was extremely popular during the Art Deco era as an affordable alternative to diamonds, known for its subtle, sophisticated glimmer under evening lights.