Vintage 18K Yellow Gold Grapevine Motif Brooch
Brooch/Pin (Nature-themed decorative jewelry) · Yellow Gold; a high-karat saturation likely alloyed with silver and copper to maintain a rich, traditional warm tone.
Purity: 18K (750 fineness), consisting of 75% pure gold and 25% alloy metals.

Type
Brooch/Pin (Nature-themed decorative jewelry)
Purity
18K (750 fineness), consisting of 75% pure gold and 25% alloy metals.
Gold Type
Yellow Gold; a high-karat saturation likely alloyed with silver and copper to maintain a rich, traditional warm tone.
Weight
Estimated 4.0 to 6.5 grams based on the thickness of the backing and the scale relative to the pin mechanism.
Description
An elegant nature-inspired brooch crafted in rich 18K yellow gold. The piece depicts a cluster of grapes with overlapping leaves, showcasing a balance between sculptural artistry and wearable luxury. The reverse side is finished with a deliberate texture to enhance the item's integrity and aesthetic consistency.
Key Features
Organic grapevine silhouette, high-purity 18K gold content, and a textured reverse that indicates a higher tier of craftsmanship than flat-backed mass-produced pieces.
Color & Finish
Deep buttery yellow color. The reverse shows a textured, stippled/sandblasted finish to hide casting marks, while the front likely features high polish or textured foliage.
Hallmarks & Stamps
A '750' purity stamp is visible on the upper section of the reverse side, alongside a partial maker's mark or registration number that appears stamped into the textured surface.
Dimensions Estimate
Approximately 25mm x 20mm; a petite to medium-sized accessory suitable for lapels or scarves.
Gemstones & Inlays
None visible on the reverse; the design suggests a solid gold sculptural piece, though the front may contain small seed pearls or stones representing grapes.
Clasp & Closure
Classic safety pin style with a revolving C-clasp (safety catch) for security; the pin stem is likely a harder gold alloy or base metal for tension.
Chain & Links
Not applicable as this is a brooch; however, the reverse shows a cast-in-place structural frame with some hand-finishing on the edges.
Craftsmanship Details
Lost-wax casting method followed by hand-soldering of the pin findings. The stippled texture on the reverse is a hallmark of quality, showing attention to detail on surfaces not immediately visible.
Authentication Indicators
The '750' stamp is consistent with high-karat European jewelry. The color is deep and lacks the 'brassy' look of gold plating. There is no visible 'brassing' or base metal peeking through on high-friction areas.
Origin & Maker
Likely European (Italian or French) given the '750' marking style and the grapevine subject matter; maker is currently unidentified due to stamp wear.
Era & Period
Mid-20th Century (circa 1950s-1970s); characterized by naturalistic motifs and the specific stippled texture on the reverse commonly found in European post-war jewelry.
Age Estimate
Circa 1960; the style of the safety catch and the organic, cast design are consistent with mid-century jewelry manufacturing.
Cultural Significance
Brooches were a staple of mid-century fashion, used to signify social status and personal style during an era of refined formal dressing.
Condition Notes
Very Good condition. There is minor surface oxidation (patina) in the recessed areas. The pin stem is straight and the safety catch is fully functional. Purity stamps remain legible.
Value Estimate
Primarily valued by gold weight (melt value) plus a 20-40% premium for its vintage appeal and craftsmanship. Retail replacement would be significantly higher due to the 18K purity.
Care & Maintenance
Avoid ultrasonic cleaners if there are hidden stones on the front. Clean with a soft brush and warm soapy water. Store separately to prevent the pin stem from scratching other jewelry.
Similar Items
14K gold leaf pins, Victorian 'Etruscan Revival' grape brooches, or contemporary Tiffany & Co. nature collection pins.
Interesting Facts
The grapevine has been a popular motif in jewelry since antiquity, symbolizing abundance, fertility, and the Roman god Bacchus (Dionysus).