Uno de 50 Silver-Plated Sculptural Band Ring
Jewelry (Ring) · Uno de 50 (UnoDe50); founded in Madrid, Spain in the late 1990s by Concha Díaz del Río. The brand is globally recognized for its unique, handcrafted artisan aesthetic and 'rebellious' design philosophy.
Pattern: Signature 'Organic' Collection; characterized by irregular, fluid shapes that mimic hand-molded clay. These pieces are typically part of seasonal collections rather than individual patterns like flatware.
Type
Jewelry (Ring)
Maker
Uno de 50 (UnoDe50); founded in Madrid, Spain in the late 1990s by Concha Díaz del Río. The brand is globally recognized for its unique, handcrafted artisan aesthetic and 'rebellious' design philosophy.
Material
Silver-plated metal alloy (Zamak). This is a base metal of zinc, aluminum, magnesium, and copper, which is then electroplated with a high-micrage layer of sterling silver (approx. 15-25 microns).
Dimensions
Standard fashion ring dimensions (Width approx. 8mm-15mm at widest point). Weight is typically substantial (10-18 grams) due to the dense Zamak base alloy used by the brand.
Description
An iconic example of Spanish contemporary jewelry, this Uno de 50 ring features the brand's signature 'molten' look. The thick, silver-plated band wraps around the finger with an intentional irregularity that evokes a piece of art discovered in a workshop. Its bold, chunky profile makes it a statement piece suitable for unisex wear, embodying a blend of ruggedness and sophistication.
Key Features
Distinguishable by the 'UNO de 50' logo stamp, the heavy weight relative to its size, and the 'pitted' or 'undulated' surface texture that is the trademark of the brand's casting process.
Material & Composition
Silver-plated metal alloy (Zamak). This is a base metal of zinc, aluminum, magnesium, and copper, which is then electroplated with a high-micrage layer of sterling silver (approx. 15-25 microns).
Finish & Decoration
Handcrafted, organic matte-to-polished finish. The decoration is 'sculptural' and 'irregular' in the Brutalist/Artisan style, deliberately avoiding perfect symmetry to emphasize the handmade origins.
Hallmarks & Stamps
The shank features the deeply recessed, cast-in-mold signature 'UNO de 50' logo in its distinct proprietary typeface. This is a brand identifier rather than a legal silver purity hallmark.
Construction Details
Cast using the 'lost wax' method. The piece shows signs of a two-part mold process with hand-finishing to smooth the edges and apply the silver plating. It is not hand-forged from a silver sheet.
Functional Features
Wide open-work or bypass-style band design, which often allows for slight manual adjustment in sizing, though typically sold in fixed sizes (Small, Medium, Large, XL).
Handle & Grip Details
N/A (Jewelry item; the shank acts as the contact point with the wearer's finger).
Craftsmanship Details
While mass-produced through casting, the finishing mimics 'hand-wrought' textures. The high-quality electroplating is significantly thicker than standard 'costume' jewelry, ensuring a long-lasting silver appearance.
Authentication Indicators
The typeface of the 'UNO de 50' stamp is consistent with genuine company branding. The 'pitting' in the metal is a characteristic of their specific Zamak casting. Lack of a '.925' or 'Sterling' mark is correct, as these items are plated, not solid silver.
Origin & Manufacturing
Designed and manufactured in Madrid, Spain. The brand prides itself on a localized production process that maintains 'Spanish Craftsmanship' standards.
Era & Period
Contemporary/Modern (Late 20th to 21st Century). It reflects the 'Artisan Jewelry' movement which rejects industrial perfection in favor of organic, textured forms.
Age Estimate
Circa 2010-present. The clarity of the stamp and the specific curvature of the shank suggest a modern production run within the last 15 years.
Cultural Significance
Represents the democratization of 'designer' jewelry in the early 2000s, moving away from fine precious gems toward bold, artistic statement pieces that prioritize design over intrinsic metal value.
Condition Notes
Good condition. There is visible surface wear and 'stacking' scratches consistent with regular use. The silver plating appears intact on the logo area, though light oxidation is present in the recessed lettering.
Value Estimate
$40–$85 USD. Factors affecting value include the specific design's popularity and the integrity of the silver plating. It holds moderate resale value as a recognized 'designer' fashion brand.
Care & Maintenance
Clean with a soft cloth and mild soapy water if necessary. Avoid abrasive silver dips, as they can strip the silver plating over time. Store in the original red leather pouch to prevent oxidation of the plating.
Similar Pieces
Often confused with solid sterling silver artisan rings from Taxco (Mexico) or Bali. However, those will usually bear '.925' stamps and feel 'warmer' to the touch than the cool, dense Zamak of Uno de 50.
Interesting Facts
The brand name 'Uno de 50' (One of 50) was originally founded on the idea of only producing 50 units of each design to ensure exclusivity, though their massive success eventually forced them to expand production beyond those limits.