Graduated Pearl Necklace with Art Deco Style Clasp

This item is a single strand necklace comprised of graduated pearls, likely simulated given the lack of overt luminescence and perfectly spherical shapes often associated with natural pearls, but this cannot be definitively concluded without further inspection. The pearls exhibit a creamy white to very light ivory color with a smooth, somewhat reflective surface. They are strung on a white or light-colored thread. The size of the pearls gradually increases from the clasp, reaching their largest diameter at the center front of the necklace, a classic design element. The largest pearls appear to be approximately 8-10mm in diameter, while the smaller pearls near the clasp are around 4-5mm. Each pearl is individually knotted, which is a desirable feature in pearl necklaces as it prevents all pearls from scattering if the strand breaks and limits abrasion between individual pearls. The clasp is a notable feature, presenting an intricate Art Deco-inspired design in a silver-toned metal, possibly white gold, platinum, or a base metal alloy. The clasp face is oval or rectangular with rounded ends and features filigree work or engraved patterns, possibly set with small, colorless stones that mimic diamonds or zircons. The craftsmanship of the clasp appears detailed, suggesting a piece from the early to mid-20th century, consistent with the Art Deco period (1920s-1930s) or a later revival. There are no visible condition issues such as nicks, scratches, or peeling on the pearls from the provided images, and the stringing appears intact. The metal of the clasp shows no obvious tarnish or damage. No maker's marks or signatures are discernible in the images. The overall appearance suggests a piece of costume jewelry or possibly a cultured pearl necklace, depending on the actual material of the pearls and the clasp.