A beautiful vintage ring by Ostby & Barton, crafted in 10K yellow gold and set with a rich purple faceted glass stone. The rectangular center stone has clipped corners and broad geometric facets, showing shades from deep plum to brighter violet as it catches the light.
The setting has wonderful period character, with softly sculpted floral and foliate details surrounding the stone and continuing onto the shoulders. The decorative goldwork gives the ring a romantic appearance while the strong rectangular center keeps the design beautifully balanced.
The interior of the band is marked O.B. 10K for Ostby & Barton.
Ostby & Barton was an American jewelry manufacturer founded in Providence, Rhode Island, in the late 19th century. The company became a prolific manufacturer of gold rings and other jewelry, and its pieces are still recognized by collectors by the distinctive O.B. maker's mark.
The company also has an extraordinary connection to the Titanic. Engelhart Ostby was a passenger aboard the ship with his daughter Helene while returning from a trip to Europe in 1912. Helene survived the sinking, while her father tragically did not. Ostby & Barton continued producing jewelry after his death, leaving behind a fascinating chapter in American jewelry history.
Sizing is available for an additional cost. Please contact us for sizing details.
DETAILS
Metal: 10K yellow gold
Stone: Purple Glass
Stone weight: 4.0ct
Ring size: 5
Weight: 1.70g
Measurements from the top of ring: Approx.
Base shank width: 1.86mm
Height off finger: 4.12mm
Era: Vintage, circa 1930s–1950s
Condition: Excellent vintage condition with light surface wear consistent with age.
Sustainable Elegance
Every Gilded Roach piece is carefully sourced for its quality and character. Choosing antique jewelry is a beautiful way to celebrate craftsmanship while supporting a more sustainable future—no new mining required.
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