We have an absolutely incredible piece of history here with this classic art deco 1920s/30s piece made by sought-after designers Ostby & Barton. The large square onyx gemstone has a center diamond and the piece is comprised of solid 10k yellow gold, weighing in at 4.09 grams. The gemstones have been verified via Presidium tester.

Engelhart Ostby was the famed Norwegian jewelry designer of the Victorian & Edwardian eras who went down with the Titanic. The story goes he missed his lifeboat because he was trying to save his jewelry box. His company continued producing jewelry until the 50s, but they'll forever be known for their ties to the Titanic.

This ring is in very good condition, please see pictures for details and measurements. Does not include my ring box.

Thanks for looking!