14K Yellow Gold Real Estate or Ceremonial Key
Specialty Item (Ceremonial/Commemorative Key) · Yellow Gold. The item displays a classic warm yellow tone consistent with standard North American 14K alloys.
Purity: 14K (58.5% Pure Gold). This is solid 14-karat gold, as indicated by the '14K' stamp. The remaining 41.5% consists of alloy metals like copper and silver for durability.

Type
Specialty Item (Ceremonial/Commemorative Key)
Purity
14K (58.5% Pure Gold). This is solid 14-karat gold, as indicated by the '14K' stamp. The remaining 41.5% consists of alloy metals like copper and silver for durability.
Gold Type
Yellow Gold. The item displays a classic warm yellow tone consistent with standard North American 14K alloys.
Weight
12.0 to 18.0 grams. Solid gold keys are typically substantial; because this appears to be a full-sized house key blank (e.g., SC1 or KW1 profile), the weight is significant compared to standard jewelry.
Description
An unusual and luxurious solid 14K yellow gold house key blank. This item serves as a high-end novelty, often used as a 'Key to the City,' a celebratory gift for a first-time homebuyer, or a romantic 'key to my heart' gesture. Unlike plated versions, this is solid gold throughout the blade and bow.
Key Features
Functioning key blank profile, 'EC 14K' hallmark, scalloped 'bow' (head) design, and un-cut bitting edge (virgin blank).
Color & Finish
Pale to medium yellow with a satin/matte surface on the head and horizontal milling lines on the blade. There is visible surface oxidation and minor scratching consistent with age.
Hallmarks & Stamps
Stamped 'EC' (likely a maker's mark) and '14K' on the top left corner of the key head. The stamp is impressed into the metal.
Dimensions Estimate
Approximately 2.0 inches (50.8mm) in length and 0.9 inches (23mm) in width at the head. Standard key blank thickness (approx 2mm).
Gemstones & Inlays
None. This is a solid metal specimen focusing on the novelty of a functional object in precious metal.
Clasp & Closure
Not applicable; features a standard circular punched hole (key ring attachment) at the top of the head.
Chain & Links
Standard key blade construction with longitudinal grooves (milling) designed for a specific lock profile (likely Schlage or Kwikset style). The edges are beveled but not yet cut with bitting.
Craftsmanship Details
Die-struck or cast as a blank and then finished with industrial milling tools. The precision is high to ensure fitment into a standard lock cylinder.
Authentication Indicators
The '14K' stamp is clear. The color is consistent throughout the scratches (no base metal peeking through). The weight-to-volume ratio would significantly exceed a brass key (gold is roughly twice as dense).
Origin & Maker
Likely USA; makers like 'EC' often represent boutique jewelry manufacturers or specialty corporate gift companies.
Era & Period
Contemporary / Late 20th Century (1970s-1990s). The blocky sans-serif stamping and the specific key head shape (bow) are typical of modern locksmithing profiles.
Age Estimate
Likely produced between 1980 and 2005 based on the style of the blank and the patina.
Cultural Significance
Represents security, ownership, and the 'American Dream' of homeownership elevated to a status symbol through the use of precious metal.
Condition Notes
Good to Very Good. The gold shows 'pocket wear' including fine scratches and minor tarnish (toning) near the hole. The structural integrity is perfectly intact.
Value Estimate
Melt value is currently the primary driver, estimated between $500 - $850 USD depending on exact final weight and current spot prices, with a modest premium for the novelty factor.
Care & Maintenance
Clean with a soft jewelry cloth. Avoid professional locksmith machines if you wish to keep it as a collectible; if cut for a lock, the value remains in the gold weight, but the aesthetic is altered.
Similar Items
Gold-plated brass commemorative keys (very light), Tiffany & Co. key pendants (jewelry only, not functional), and silver key blanks.
Interesting Facts
Solid gold keys were historically given to dignitaries as 'Keys to the City.' Today, they are occasionally commissioned by luxury real estate developers for high-net-worth closings.