Halo-style pendant necklace featuring a green cushion-cut stone

This jewelry piece consists of a halo-style pendant suspended from a fine link chain. The central feature is a cushion-cut green stone, which appears stylistically consistent with an emerald or green tourmaline, though the exact gem species is unverified without gemological testing. The stone is surrounded by a double border or dense 'halo' of small, brilliant-cut clear stones that are consistent with the appearance of diamonds or cubic zirconia. The metal has a bright, white luster consistent with white gold, platinum, or rhodium-plated sterling silver. The bail of the pendant is also encrusted with tiny clear stones, adding to the decorative detail. The craftsmanship appears to be modern, with a setting style popular in the late 20th to early 21st century. No maker's marks, hallmarks, or metal purity stamps are legible in the image; therefore, any attribution to a specific jeweler or a claim regarding material value must be considered a hypothesis subject to physical inspection. The condition appears good with high reflectivity and no visible chips to the facets of the stones from this angle.

Based on the image provided, I observe a modern halo-style pendant necklace featuring a cushion-cut green center stone surrounded by a double border of smaller clear stones. From a photograph alone, I cannot test the gemstones or verify metal purity. The vibrant green stone is stylistically consistent with an emerald or green tourmaline, but it could equally be a synthetic stone or glass. Similarly, the surrounding clear stones might be diamonds, cubic zirconia, or white sapphires. Because no hallmarks are visible from this angle, the bright white metal could be platinum, white gold, or rhodium-plated sterling silver. The craftsmanship suggests late 20th to early 21st-century design, and the condition appears good with high reflectivity and no immediately visible chips. The appraisal value provided represents a working hypothesis that this piece features a natural natural emerald and natural diamonds set in 18k white gold or platinum. Comparable fine jewelry pieces commonly sell in the $2,000 to $4,500 range, depending on the exact carat weight and gem quality. However, this value depends entirely on authentication. To properly assess the piece, a physical, in-person examination and gemological testing are required. If this turns out to be a fashion or reproduction piece utilizing synthetic stones, glass, or cubic zirconia set in sterling silver, the market value would be significantly lower, typically falling into the $50 to $150 range.