Yellow and white gold-tone patterned jewelry set

This jewelry set includes a hinged bangle bracelet and a pair of matching hoop earrings. The pieces feature a two-tone finish, combining yellow and silver-toned metal (likely white gold or rhodium-plated accents) with a textured 'diamond-cut' or stippled finish. The exterior displays a repeating chevron or zigzag pattern that alternates between the two metallic colors, while the interiors are polished yellow gold-tone. The bangle is equipped with a tongue-and-groove clasp and a safety hinge; the earrings feature traditional saddleback/latch-back closures. Marks visible on the interior of the bangle are consistent with hallmarks often found on gold jewelry, though they are partially obscured in the image. The user notes the items are marked 'Rci 10k', which generally refers to Royal Chain Inc. and 10-karat gold purity; however, these markings are unverified and cannot be confirmed without professional testing for metal fineness. The style is common for late 20th-century to contemporary fine jewelry. Condition appears good with minor surface scratches consistent with light wear.

I have examined the images of this two-tone patterned jewelry set consisting of a bangle and matching hoop earrings. Based on what I can see, the set features a repeating chevron design with a textured finish consistent with 10k gold pieces from the late 20th century. The user-provided mark of 'Rci 10k' suggests a working hypothesis that the items were manufactured by Royal Chain Inc. and are composed of 10-karat gold; however, I cannot verify the metal purity or the maker's mark through a photograph alone. This estimate assumes the items are indeed 10k gold. The value is primarily driven by the fluctuate price of gold and the secondary market demand for mid-karat designer-style jewelry. On the current market, similar 10k gold sets without specific provenance typically trade within this range. If physical testing were to reveal the items are gold-plated or base metal replicas instead of solid 10k gold, the value would likely drop below $50. Conversely, if the items were 14k or 18k gold, the value would increase significantly. To confirm this valuation, an in-person examination by a qualified professional is required to test the metal's acid-resistance or XRF signatures and to inspect the clarity of the interior hallmarks. My estimate represents the potential market value for the set if the user-supplied specifications are accurate, pending a formal authentication process.