Turquoise Square Cabochon Necklace and Earring Set

This is a costume jewelry set consisting of a necklace and a pair of matching clip-on earrings. The dominant feature of the set is the vibrant turquoise-colored square cabochons, likely made from resin, glass, or plastic, which are set into gold-toned metal findings. The necklace is a choker-style piece with a linked chain, featuring approximately ten square cabochons spaced evenly along the front half of the chain. Each cabochon is enclosed in an irregular, open-work gold-toned metal surround, which is then connected to the next by oval-shaped links. The chain itself appears to be a basic cable or curb link, with an extender chain and a small, round bead or charm at the end of the extender, suggesting adjustability for length. The clasp mechanism is not clearly visible but appears to be a lobster clasp or similar swivel-hook closure. The matching earrings are clip-on style, each featuring a single turquoise square cabochon set in a similar gold-toned, open-work irregular surround as seen on the necklace. The metal shows some signs of wear, particularly some dulling of the gold tone and potentially minor surface scratches consistent with use. No specific maker's marks or signatures are visible in the provided images. The overall design suggests a mid-20th century to contemporary costume jewelry aesthetic, possibly from the 1960s-1980s or a more modern reproduction inspired by these eras. The craftsmanship appears to be typical of mass-produced costume jewelry, focusing on visual appeal rather than fine material value.