14K Yellow Gold Custom House Key Blank with LC Stamp

Key / Novelty Gold Item · Yellow Gold (Standard 14K Alloy containing silver and copper)

Purity: 14K (58.5% Pure Gold). The '14' marking typically denotes 14 parts gold to 10 parts alloy metals.

14K Yellow Gold Custom House Key Blank with LC Stamp

Type

Key / Novelty Gold Item

Purity

14K (58.5% Pure Gold). The '14' marking typically denotes 14 parts gold to 10 parts alloy metals.

Gold Type

Yellow Gold (Standard 14K Alloy containing silver and copper)

Weight

12g - 18g (Denser than standard brass keys; weight depends on if the blade is solid or plated)

Description

A luxurious functional or ceremonial house key blank crafted from 14K gold. This piece combines security with high-end status, often used as a milestone gift for new homeowners or a collector's personal accessory.

Key Features

Incised '14' mark indicating gold content and custom 'LC' identifier; unique scalloped bow design.

Color & Finish

Pale warm yellow gold with a matte/brushed surface finish on the bow; bright metallic finish on the cut blade areas.

Hallmarks & Stamps

'14' and 'LC' stamped on the bow. The '14' refers to gold purity, and 'LC' is likely a manufacturer or locksmith identification code.

Dimensions Estimate

Standard house key size: approximately 2.15 inches (5.5 cm) in length and 0.9 inches (2.3 cm) bow width.

Gemstones & Inlays

None visible; solid metal construction.

Clasp & Closure

Not applicable (open circular hole for key ring attachment).

Chain & Links

Not applicable; single piece solid construction.

Craftsmanship Details

Die-struck or cast bow with a machined blade. The stamping is deep and industrial, suggesting mass-customization rather than artisan hand-forging.

Authentication Indicators

The '14' stamp is clear; however, the greyish-green hue under certain lighting suggests professional testing is needed to differentiate between solid 14K and a thick 14K gold-filled/plated brass base.

Origin & Maker

Likely United States or European origin. 'LC' may refer to Lucky Line or a custom jeweler specializing in precious metal keys.

Era & Period

Contemporary (2000s-present) based on the modern keyway profile (likely a SC1 or KW1 variant).

Age Estimate

Modern production, likely manufactured within the last 10-15 years.

Cultural Significance

Represents the 'American Dream' of homeownership and the intersection of utility with extreme luxury.

Condition Notes

Good to Very Good. Shows some surface scuffing and minor wear on the blade edges. The 'biting' area of the key has not been fully cut for a specific lock.

Value Estimate

Melt value estimated between $450-$700 USD depending on exact weight, with a retail brand premium bringing the price to $1,000+ for solid versions.

Care & Maintenance

Gold is softer than commercial brass; avoid frequent use in heavy-duty locks. Clean with a soft cloth and mild soap. Professional polishing can restore the bow's luster.

Similar Items

Solid 18K gold designer keys (Tiffany & Co.), gold-plated brass novelty keys, and sterling silver key blanks.

Interesting Facts

Solid gold keys were historically given as 'Keys to the City' or as traditional 21st birthday gifts in some European cultures.

Identified on 7/10/2026