Antique 18k Gold and Garnet Intaglio or Signet Ring

This is a substantial, wide-band yellow gold ring, likely dating from the mid-to-late 19th century (Victorian era). The piece is constructed from high-karat yellow gold, showing a rich, buttery yellow hue characteristic of 18k gold. The exterior of the band features intricate high-relief chasing and repoussé work, depicting ornate foliate and scroll motifs. The central setting appears to house a deep reddish-brown gemstone, possibly a garnet or carnelian, which may be carved as an intaglio, though the specific motif is obscured in the image. Notable features include a set of prominent hallmarks on the interior shank; one exceptionally clear mark is much like the 'crown' over '18' standard mark for British gold, alongside a possible leopard's head for London and a date letter. The condition appears well-preserved with a soft age-appropriate patina and minor surface scratches inside the band. Small indentations near the hallmarks suggest professional testing or historical wear. The craftsmanship is of high quality, indicative of handmade jewelry from a luxury atelier of its period.