Vintage 18K Yellow Gold Box Clasp Segment
Jewelry Component (Box Clasp/Closure) · Yellow Gold with a rich, high-karat saturation likely alloyed with silver and copper.
Purity: 18K (750 fineness); containing 75% pure gold and 25% alloy metals.
Type
Jewelry Component (Box Clasp/Closure)
Purity
18K (750 fineness); containing 75% pure gold and 25% alloy metals.
Gold Type
Yellow Gold with a rich, high-karat saturation likely alloyed with silver and copper.
Weight
2.5 - 4.5 grams (estimated for the clasp component alone).
Description
A substantial 18K yellow gold box clasp housing, featuring precision-cut side notches for a safety catch. The item displays the characteristic warm glow of high-purity gold and a sturdy, thick-walled construction designed for high-end luxury jewelry such as wide gate bracelets or heavy flat-link necklaces.
Key Features
Precision-milled safety notches, thick-walled architectural gold housing, and high-karat material density.
Color & Finish
Deep buttery yellow with a satin-to-high polish finish; exhibits mild surface micro-abrasions consistent with wear.
Hallmarks & Stamps
None visible in the macro shot; typically found on the tongue or the underside of the box housing.
Dimensions Estimate
Approximately 12mm - 18mm in length; 6mm - 8mm in width.
Gemstones & Inlays
None visible; the piece focuses on structural gold work with decorative notched cut-outs.
Clasp & Closure
Internal tongue-and-groove box clasp mechanism (female portion shown).
Chain & Links
N/A; this is a terminal housing for a wide bracelet or thick chain, featuring side safety notches.
Craftsmanship Details
Highly precise mechanical construction; likely stamped and then hand-finished to ensure smooth action of the internal tongue.
Authentication Indicators
The deep, consistent yellow hue is characteristic of 18K+ gold; the lack of 'brassing' or plating flakes at the cut-out edges suggests solid metal.
Origin & Maker
Likely European (Italian or French) given the high-gauge 18K construction and precision milling.
Era & Period
Late Mid-Century to Retro (circa 1950-1970) based on the heavy gauge and mechanical design.
Age Estimate
Circa 1960s-1980s based on the industrial yet refined manufacturing style.
Cultural Significance
Represents the post-war era of 'Bold Gold' jewelry where the clasp became an integrated part of the artistic design rather than a hidden utility.
Condition Notes
Very Good; showing minor surface scratches and soft patina. Mechanical edges appear crisp and non-deformed.
Value Estimate
$180 - $350 (primarily based on gold melt value plus a 20% premium for component utility).
Care & Maintenance
Clean with a soft brush and warm soapy water; avoid ultrasonic cleaners if the clasp has internal steel springs.
Similar Items
14K gold version (lighter color), Gold-plated brass (shows wear at friction points), or a hidden 'invisible' clasp.
Interesting Facts
The 'box and tongue' clasp is one of the oldest secure jewelry closures, refined in the 19th century to allow for seamless integrated designs.