Multi-strand necklace with turquoise-style circular stones

This item is a triple-strand necklace featuring three staggered lengths of fine yellow-toned chain, which appears to be consistent with gold-plated or gold-filled metal. Each strand is set with multiple bezel-mounted circular cabochons and rose-cut stones that are stylistically consistent with turquoise or turquoise-colored composite material. The stones exhibit a vibrant sky-blue hue with varying degrees of dark brown and black matrix inclusions visible throughout the surfaces. The mounting features darkened or oxidized borders around the stone settings, creating a high-contrast aesthetic. The clasp mechanism consists of two circular ring components, one appearing to be a toggle-style or simple ring closure. Small hallmark-like details appear on the flat rings at the top, but they are not legible in the provided photograph to establish a specific maker. The necklace shows minor surface wear and patina consistent with age and previous use. Total length cannot be verified from the image, but the arrangement suggests it is intended to drape as a multi-tier collar or princess-length piece. Without physical testing of the metal or mineral content, this identification remains a visual hypothesis based on common jewelry characteristics of the late 20th or early 21st century.

Based on my visual examination of the provided image, I have analyzed this triple-strand necklace featuring cabochons stylistically consistent with turquoise. The value is estimated assuming the piece is a high-quality fashion or boutique item from the late 20th to early 21st century. I cannot verify from a photo whether the metal is gold-plated base metal, gold-filled, or solid karat gold, nor can I determine if the stones are natural, stabilized, or composite materials. The visible hallmarks are illegible in the image, so I am treating the maker as unidentified. The estimate reflects typical market demand for multi-strand Mediterranean-style jewelry; however, if the metal is confirmed as high-karat solid gold through acid testing, the value would increase significantly based on bullion weight. Conversely, if physical inspection reveals the stones are dyed plastic or the 'gold' is a low-quality wash with significant wear, the value would likely fall below $50. To refine this estimate, an in-person examination is required to test the metal's fineness, analyze the stone density for mineral authenticity, and clarify the maker's marks under magnification. Because authenticity as a specific designer piece cannot be established here, this valuation represents an 'in the style of' or 'unattributed' market range. The final value depends entirely on subsequent authentication of materials and brand origin, as unauthenticated items of this aesthetic typically sell for less than those with documented provenance or verifiable hallmarks.