Budlong, Docherty & Armstrong (BDA) is a historic jewelry brand founded in 1943 in Providence, Rhode Island, by Frank Rhodes Budlong, Edgar Milton Docherty, and George A. Armstrong. The company originated from the William C. Greene Co., established in 1849, and was renamed BDA in 1905. BDA became known for its rare, collectible jewelry—particularly cameo brooches, pendants, and rings—crafted from hand-carved carnelian or shell, 10K gold, silver, pewter, cultured pearls, and precious stones like sapphires, opals, and emeralds. This ring is a classic example of BDA.
• Circa 1940 • Metal stamped 10k and tests 10k using Niton™ XL2 XRF Handheld Precious Metal Analyzer • Three round cabochon opals weighing approximately 0.35 carat total, graded white bodycolor, blue, red, and green faint play-of-color • Budlong, Docherty & Armstrong (BDA) makers mark • Size 5 ¼ • Estimated gross weight: 1.2 grams • Good vintage condition, wear in the form of minor scratches, wear appropriate with age, patina
