Vintage 1970s Black Onyx 9ct Yellow Gold Signet Ring

A classic vintage signet ring from the late 1970s, set with a deep, inky black onyx that has a quietly commanding presence. The polished surface reflects light like glass, creating a striking contrast against the warmth of the 9ct yellow gold mount. Simple, bold, and unmistakably timeless.

The oval onyx is framed in a smooth bezel, flowing seamlessly into gently sculpted shoulders that give the ring a clean, confident silhouette. It’s the kind of piece that feels as relevant today as it did when it was first made.

Black onyx has long been associated with strength and grounding, making it a natural choice for signet rings. Whether worn traditionally or as a modern statement, it offers a refined, understated edge.

There are minor surface scratches to the onyx, consistent with age and gentle wear, and not noticeable when worn.

Please note that the display box shown is for presentation purposes only and is not included in the sale.

Details

• Era: Vintage, 1970s
• Metal: 9ct Yellow Gold
• Ring Size: UK S½ / US 9¼ / EU 59⅝
• Resizable to: UK R–X / US 8½–11¾ / EU 57¾–65⅞
• Gemstones: Black onyx, approx. 15.5 × 13.7mm
• Weight: 3.88grams
• British hallmarks: SJ, Gold Standard Mark, 375, London, date letter “D” (1978)
• Condition: Excellent vintage condition
• Packaging: Presented in our signature gift box

Measurements:

• Ring head: 17mm high
• Shank: 2.7mm (narrowest point)
• Profile: sits approx. 4.5mm high from the finger

All gemstones have been professionally examined, authenticated, and recorded by GIA Graduate Gemologist.

Important Information for International Buyers:

Kindly note that international orders may incur customs duties, import taxes, and other fees upon arrival, depending on your country’s regulations. These charges are the responsibility of the buyer and are not included in the item price or shipping cost.