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PL252

Vintage 9ct Yellow Gold Onyx Pinky Ring

A refined vintage ring from our pre-loved jewellery collection, this elegant 9ct yellow gold design showcases a sleek rectangular black onyx measuring approximately 8 x 3mm. Hallmarked by the Birmingham Assay Office with a 1959 date letter (K) and 375 gold stamp, the ring has been professionally refurbished and presented in beautiful as-new condition. Weighing just 1.2 grams and finger size L, its slim profile makes it particularly well suited as a pinky ring or understated dress ring, offering timeless styling at an accessible price.

Vintage 9ct Yellow Gold Onyx Pinky Ring Main Image


$279.45
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Pre-Loved Rectangular Black Only Gold Ring

Black onyx has remained one of the most enduring gemstones in jewellery design for generations. Valued for its rich, mirror-like appearance, the gemstone creates a striking contrast against polished yellow gold while maintaining an understated elegance that never falls out of fashion.

This ring embraces that philosophy with clean architectural lines and restrained proportions. The slender rectangular onyx is securely set within a minimalist gold mount, creating a design that feels every bit as contemporary today as it did when first crafted over sixty years ago.

Hallmarked British Gold


Crafted in solid 9ct yellow gold, the ring bears hallmarks from the Birmingham Assay Office together with the 1959 date letter (K) and 375 gold standard, confirming both its authenticity and period of manufacture.

With a head width of approximately 4mm, gently tapering to 1.5mm behind the finger, the ring offers exceptional comfort for everyday wear. Its elegant proportions make it especially suited as a pinky ring, while also appealing to anyone seeking a discreet vintage dress ring with genuine mid-century character.

Professionally inspected, polished and restored within our workshop, the ring is offered in outstanding condition and is ready to wear immediately.

As with every piece in our pre-loved jewellery collection, this is a unique one-off item. Once sold, it cannot be repeated.

Product Specification


  • Collection: Pre-Loved Jewellery
  • Metal: 9ct Yellow Gold
  • Gold Standard: 375
  • Gemstone: Natural Black Onyx
  • Gemstone Shape: Rectangular
  • Gemstone Dimensions: Approx. 8mm × 3mm
  • Ring Width (Head): Approx. 4mm
  • Ring Width (Back): Approx. 1.5mm
  • Finger Size: L
  • Weight: 1.2g
  • Hallmark: Birmingham Assay Office
  • Date Letter: K (1959)
  • Condition: Professionally Refurbished
  • Presentation: As-New Condition
  • Availability: One Available Only






Pre-loved, cherished jewellery from Serendipity Diamonds


For your reassurance, all items of pre-loved jewellery undergo a detailed inspection, followed by full refurbishment to present the item in pristine condition ready to wear. In addition, we provide...

Complete before and after-sales support

Fast delivery - items are available from stock

7 days returns (

Free Worldwide shipping)

If you require a Valuation for Insurance we can provide this on request £25.00 cost

Pre-owned items may be sold under the VAT Margin Scheme. VAT is not separately itemised.



Pre-loved rectangular yellow gold onyx ring