18K Yellow Gold Jewelry Clasp Connector Plate

Jewelry Component - Connector Plate / End Link · Yellow Gold; a classic alloy likely containing copper and silver to maintain the rich golden hue and structural durability.

Purity: 18K (750 fineness); contains 75% pure gold and approximately 25% alloy metals.

18K Yellow Gold Jewelry Clasp Connector Plate

Type

Jewelry Component - Connector Plate / End Link

Purity

18K (750 fineness); contains 75% pure gold and approximately 25% alloy metals.

Gold Type

Yellow Gold; a classic alloy likely containing copper and silver to maintain the rich golden hue and structural durability.

Weight

Estimated 0.1 to 0.3 grams; extremely lightweight and thin, typical of auxiliary jewelry findings.

Description

An essential 18K gold connector plate used by jewelers to provide a secure anchoring point for clasps. This piece acts as the 'female' end of a jewelry set, allowing a hook to pass through its aperture.

Key Features

Distinctive 'K18' stamp; oblong shape with rounded ends; dual-hole design for structural versatility.

Color & Finish

Deep yellow gold color with a satin-to-polished finish. Shows minor surface scratching and typical aged gold luster.

Hallmarks & Stamps

Stamped 'K18' in a sans-serif font. The 'K' preceding the number is common in Japanese and Asian markets, indicating Karat.

Dimensions Estimate

Length approximately 8mm to 10mm; Width approximately 3mm; extremely thin gauge similar to a paperclip.

Gemstones & Inlays

None; basic functional metal component.

Clasp & Closure

This is a component for a closure; it features two holes designed to receive jump rings or a spring-ring/lobster-claw clasp hook.

Chain & Links

N/A; this is a flat-plate terminal connector used to finish a chain or attach a clasp to a necklace or bracelet.

Craftsmanship Details

Precision die-struck/stamped from a gold sheet; clean punching of holes with no jagged edges; standard industrial jewelry finding quality.

Authentication Indicators

The color is consistent with 18K yellow gold; the stamp depth is uniform; the edges show clean stamping without the flaking typical of plated metals.

Origin & Maker

Likely Japan or Southeast Asia based on the 'K18' (Karat first) stamping convention; maker is unknown as no logo is present.

Era & Period

Contemporary (late 20th century to present); the stamp style and machine-cut shape suggest modern manufacturing.

Age Estimate

Likely produced within the last 20-30 years based on font style and lack of heavy wear.

Cultural Significance

Represents the standard of high-purity gold used in everyday fine jewelry in international markets outside the United States.

Condition Notes

Very Good; the stamp is crisp and legible. Minimal deformation around the holes and standard light micro-abrasions.

Value Estimate

Primarily melt value (approx. $10-$20 depending on exact weight) plus minimal replacement cost; value increases only when attached to a full high-end piece.

Care & Maintenance

Clean with a soft gold-polishing cloth; avoid heavy tension which could warp the thin gold plate.

Similar Items

18K Gold Jump Rings, Lobster Clasp Tags, or 750-stamped Eagle-head tags (French); differs by its structural plate design.

Interesting Facts

The 'K18' mark versus the '18K' mark is often an indicator of the item's manufacturing origin, frequently pointing toward Asian jewelry standards.

Identified on 5/28/2026
18K Yellow Gold Jewelry Clasp Connector Plate | Gold Identifier