Two assorted metal band rings

This pair of jewelry items consists of two separate circular bands. The top band appears to be yellow metal with a polished outer surface. It bears an interior inscription that is partially legible as "SAMBA - SHEL[...]"; this marking is consistent with personal commemorative engravings or a specific manufacturer's line, though it remains unverified without physical inspection. The interior surface of this yellow band shows a reflective luster consistent with gold-toned materials. The bottom band is a larger, silver-toned metal ring with a notably matte or brushed texture on the exterior edges and interior. The owner identifies the top item as 18-karat yellow gold and the bottom as 14-karat white gold, though these material claims are unverified from the photograph alone as no hallmarks for fineness (such as '750' or '585') are clearly visible in the provided image. Both rings show signs of wear consistent with regular use, including surface micro-scratching and minor scuffing. The craftsmanship appears to be of a modern, minimal aesthetic. Because weight and purity cannot be determined from a photo, the specific metal content and value are hypothetical and subject to in-person testing by a professional.

Based on the provided imagery and descriptions, I am examining two metal bands. The owner identifies the top band as 18-karat yellow gold and the bottom as 14-karat white gold (size 13). From a visual inspection, I see a yellow metal band bearing an inscription 'SAMBA - SHEL[...]' and a larger silver-toned band with a brushed finish. I cannot verify the metal purity, weight, or the specific origin of these markings from a photograph alone. My estimate assumes the hypothesis that these are solid gold alloys as stated by the user. If the 18k yellow gold band weighs between 4 and 8 grams, its value is primarily driven by its intrinsic metal content. The 14k white gold band's value is similarly weight-dependent, though it bears a lower gold-to-alloy ratio. Based on current market behavior for modern, unbranded gold jewelry, these pieces generally sell for a slight premium over their scrap melt value. I cannot confirm if the metal is solid gold or a plated alternative; if these items are found to be gold-filled or plated base metals, the value would drop significantly to a decorative range of $20 - $50. To establish a formal valuation, a physical inspection is required to perform acid testing or X-ray fluorescence (XRF) to determine fineness, alongside a precise measurement of mass in grams. The presence of surface micro-scratching is consistent with regular wear and typical for pre-owned gold, which slightly impacts the resale value but not the underlying material worth. Verification of any manufacturer hallmarks would also be necessary to determine if a brand premium applies beyond the raw material value.