Up for your consideration is a stunning, high-end fine jewelry statement ring crafted from solid 14k yellow gold featuring a glossy, smooth black onyx cabochon stone.

This vintage estate piece features a distinctive modernist or brutalist design, showcasing a beautifully textured, "molten" asymmetric gold frame that perfectly cradles the polished black stone. The heavy texture tapers smoothly into a comfortable, high-polish back band. Weighing a substantial 8 grams, this ring has an incredibly luxurious, heavy-on-the-finger feel that denotes exceptional fine jewelry craftsmanship.

Hallmarks & Authenticity

The inside of the band is clearly stamped "14k" for gold purity alongside a multi-letter designer/maker’s mark reading "N F-F G", ensuring its authentic, bench-crafted estate origin.

Dimensions & Specifications

Ring Size: US 6.5 (Verified on a professional ring mandrel)

Total Weight: 8.0 Grams (Includes stone)

Ring Face Dimensions: Measures approximately 0.75" across the widest part of the setting

Band Width: Tapers from approx. 12mm at the front design down to 4mm at the reverse shank

Condition

Excellent vintage/pre-owned condition. The solid gold setting displays a gorgeous, warm natural patina with only minor, microscopic surface wear consistent with an authentic estate piece. The black onyx cabochon is secure in its setting, smooth, and free of cracks or notable chips. Please review all high-resolution photos for exact cosmetic detail.

Style Notes

This striking ring flawlessly merges raw, industrial mid-century brutalist structure with elevated, bohemian minimalism. The stark, high-contrast interplay between the organic, molten 14k yellow gold and the liquid-smooth, inky black onyx makes it a phenomenal signature piece. It pairs beautifully with natural fibers like crisp linen, heavy cotton gauze, or sleek silk slip dresses, lending an archival, found-object aesthetic to any look.