Ostby Barton Signet Ring Value Guide

This Ostby Barton signet ring is a premier example of early 20th-century American craftsmanship, featuring a classic oval face and intricate filigree shoulders. Its collectibility is deeply enhanced by the tragic history of co-founder Engelhart Cornelius Ostby, who famously perished during the sinking of the Titanic in 1912.

What affects the value of Ostby Barton Signet Ring?

• The historical connection to the Titanic disaster significantly drives demand and premium pricing among maritime collectors.
• The presence of a clear, legible 'O-B' maker's mark is essential for reaching the $450-$495 value range.
• Condition of the delicate filigree work, as wear or thinning on the shoulders can decrease the item's market value.
• The quality and clarity of the star-set diamond accent compared to typical examples from the same era.

How to Identify Ostby Barton Signet Ring?

• Look for the distinct 'O-B' hallmark stamped inside the shank, often accompanied by the gold purity mark.
• Examine the star-set diamond mounting, a signature decorative technique used by the Providence, Rhode Island firm.
• Verify the specific Edwardian-era filigree patterns on the shoulders which are characteristic of their 1910-1920 production.
• Check for the 10K gold stamp which aligns with the manufacturer's standard material usage for this period.

History of Ostby Barton Signet Ring

Ostby & Barton was an iconic American jewelry manufacturer based in Providence, Rhode Island. The company became historically significant after its co-founder, Engelhart Cornelius Ostby, perished in the sinking of the Titanic in 1912. The brand is highly sought after by collectors of memorial and early 20th-century American jewelry.