What china makers mark has a raised diamond shape?

Answer 1

The raised diamond-shaped maker's mark is often associated with the Chinese porcelain manufacturer known as the "Four Friends" or "Four Gentlemen," which is linked to the Jingdezhen region. This mark typically features a stylized depiction of the four plants: bamboo, plum blossom, orchid, and chrysanthemum. It is a sign of quality craftsmanship and is often found on porcelain pieces dating from the late 19th century to the early 20th century.