Japanese Imari-style Porcelain Ring Bowl or Planter

This item is a circular, shallow porcelain vessel, likely functioning as a ring bowl, trinket dish, or possibly a small planter given its overall form. It features a distinctive Japanese Imari-style decoration in rich cobalt blue and white, with outlines and accents in a reddish-brown or rust color, particularly visible on the rim. The central circular well has an unadorned, off-white interior. Surrounding this well, the flat top surface of the bowl is intricately decorated with a series of repeating geometric and stylized patterns. These include wave motifs (seigaiha), interlocking geometric shapes (possibly a version of shippo or key fret patterns), and what appear to be floral or cloud-like elements interspersed. The exterior sidewall of the bowl also exhibits similar blue and white patterns, creating a cohesive design. The rim of the bowl and the circular opening for the central well are highlighted with the reddish-brown/rust glaze, providing a warm contrast to the predominant blue and white. The construction appears sturdy, made from a high-fired porcelain or ceramic material. No visible chips, cracks, or significant wear are apparent from the provided images, suggesting it is in good to excellent condition. The craftsmanship appears to be of good quality, with clear delineation of the painted patterns. The style suggests an origin from the mid-20th century to contemporary production, drawing heavily from traditional Japanese Imari patterns.