AI Appraisal Estimate

This is a Tiffany & Co.'s Fleur de Lis Diamond Key Pendant, crafted from '750' purity gold, commonly interpreted as 18-karat gold, and adorned with numerous round brilliant-cut diamonds. The key design features a stylized Fleur de Lis motif at its bow (the top, ornamental part of the key), which is intricately detailed with a combination of pave-set and bezel-set diamonds. The central part of the bow showcases a cluster of diamonds forming a floral or star-like pattern, surrounded by an openwork, curvilinear design also encrusted with diamonds. The stem or shaft of the key is straight and appears to be fully pave-set with diamonds along its length, creating a continuous sparkling surface. The bit (the part of the key that enters the lock) is a distinctive trefoil or clover-like shape, also set with diamonds. A bail, likely also of 18k gold, is attached to the top of the bow for suspension on a chain. The overall color is a bright white metal, indicative of white gold or platinum, though the '750' marking confirms it as 18k gold. The item appears to be in excellent condition with no visible damage, missing stones, or significant wear, maintaining its brilliant luster. The craftsmanship is high-quality, characterized by precise diamond setting and a well-finished metal surface. Based on the presence of the 'Tiffany & Co.' and '750' markings, it is an authentic piece from the renowned jewelry house, likely a contemporary design from their popular 'Tiffany Keys' collection. Its aesthetic combines classic elegance with modern sparkle.

I have thoroughly examined the provided image and description of this Tiffany & Co. Fleur de Lis Diamond Key Pendant. The item is crafted from '750' purity gold, confirming it as 18-karat gold, most likely white gold given the bright white metal color. The design is consistent with Tiffany & Co.'s renowned 'Tiffany Keys' collection, featuring a diamond-encrusted Fleur de Lis motif on the bow, a pave-set stem, and a trefoil-shaped bit, also set with diamonds. The presence of 'Tiffany & Co.' and '750' markings strongly indicates authenticity. Based on the visual assessment, the pendant appears to be in excellent condition, showing no visible damage, missing stones, or significant wear. The diamond setting appears precise, and the metal surface well-finished, reflecting Tiffany's high manufacturing standards. Market conditions for pre-owned Tiffany & Co. diamond jewelry from popular collections like 'Tiffany Keys' remain robust, especially for pieces in excellent condition. Demand is consistently strong due to Tiffany's brand recognition and the enduring appeal of these designs. Comparable sales of similar Tiffany key pendants, particularly diamond-set versions, typically fall within the higher end of the secondary luxury market. While this specific Fleur de Lis full-diamond pave design is not exceedingly rare, its desirability contributes significantly to its value. It is crucial to note that while the markings and visual characteristics strongly suggest authenticity, a definitive verification requires physical inspection. An in-person examination would allow for tactile assessment of craftsmanship, detailed inspection of diamond quality (cut, color, clarity), verification of total carat weight, and closer scrutiny of hallmarks. Full authentication would ideally involve expert evaluation by a gemologist and jeweler, potentially with the aid of provenance documentation (original receipts, certificates) to ensure the item's complete history and authenticity.