Antique Belais Deco 12 Diamond & 18k Ring. True time period piece. White gold

The ring is an antique piece made by the Belais Manufacturing Co., famous for pioneering 18k white gold in the early 20th century. Here's what you need to know about the Belais 18K white gold diamond ring: Pioneer of White Gold: David Belais, founder of the Belais Manufacturing Company, developed and patented a successful formula for 18k white gold in 1920. This made white gold widely available as a substitute for platinum, which was restricted during World War I. "Belais" as a Synonym: So successful was Belais's white gold that "Belais metal" became a common term for white gold in the 1920s, regardless of the manufacturer. 18K White Gold: The "18K" marking means the ring is made of 18 karat white gold, meaning it contains 75% pure gold alloyed with other metals like nickel and zinc to give it its white appearance and enhance its durability and malleability. Diamonds: The presence of diamonds indicates it's likely a wedding band or engagement ring from the Art Deco era, a period known for its distinctive geometric designs and the use of white metals. Value: Belais rings are highly sought after by collectors of antique and vintage jewelry due to their historical significance and craftsmanship. Their value can vary based on factors like the number and quality of diamonds, the specific design, and overall condition.