18K Yellow Gold Cushion-Shaped Box Clasp or Locket Case
Jewelry Component / Box Clasp / Locket Case · Yellow Gold (High-karat alloy with silver and copper tones).
Purity: 18K/750 fineness, containing 75% pure gold based on the deep buttery saturation and surface luster.
Type
Jewelry Component / Box Clasp / Locket Case
Purity
18K/750 fineness, containing 75% pure gold based on the deep buttery saturation and surface luster.
Gold Type
Yellow Gold (High-karat alloy with silver and copper tones).
Weight
Estimated between 5 and 10 grams due to solid construction and bulk; significant for its size.
Description
A substantial and sleek 18K yellow gold cushion-shaped jewelry component. This piece features a sophisticated satin finish that diffuses light, giving the high-karat gold a warm, soft glow. The seamless construction suggests it functions as a premium box clasp, designed to be the focal point of a luxury necklace or bracelet.
Key Features
Cushion-cut profile, hidden closure seam, substantial wall thickness, and uniform high-purity gold color.
Color & Finish
Deep, rich yellow with a satin-brushed or soft matte finish; minor surface abrasions and patina from wear.
Hallmarks & Stamps
Not visible in current orientation; typically located on the interior tongue or the back plate as '18K' or '750'.
Dimensions Estimate
Approx. 15mm-20mm in length, 12mm-15mm in width; standard oversized clasp or small focal component.
Gemstones & Inlays
None visible; solid gold minimalist design with emphasis on form and metal texture.
Clasp & Closure
Appears to be a box clasp mechanism with a concealed seam, potentially used for high-end pearls or a multi-strand necklace.
Chain & Links
N/A; standalone component intended for attachment to a chain or strand.
Craftsmanship Details
Precision-fitted seams indicate high-quality casting or hand-fabrication; balanced proportions and smooth edge softening.
Authentication Indicators
Golden-orange hue characteristic of 18K+ gold; no evidence of plating wear (brassing) at the edges; specific gravity appears high.
Origin & Maker
Unknown independent jeweler or luxury atelier; suggests European manufacturing standards based on the softness of the cushion shape.
Era & Period
Late Mid-Century to Contemporary (1970s–Present); minimalist industrial aesthetic.
Age Estimate
Circa 1990s–2010s; design mimics modern architectural simplicity with traditional metal smithing techniques.
Cultural Significance
Represents the 'Quiet Luxury' movement where the value is in the weight and purity of the gold rather than ostentatious branding.
Condition Notes
Very Good; light 'scritching' or surface hair-scratches consistent with use. No major dents or structural deformation.
Value Estimate
Primarily valued for its 18K gold melt value ($350-$600) plus a 20-30% premium if sold as a functional luxury replacement component.
Care & Maintenance
Clean with warm soapy water and a soft brush; store in a separate pouch to avoid scratching the satin finish.
Similar Items
Tiffany & Co. Bean components, Elsa Peretti closures, or vintage Cartier barrel clasps.
Interesting Facts
High-purity clasps like this are often hand-finished to ensure the 'click' of the closure is audible and secure, a hallmark of fine jewelry.