Bidspirit auction | AN ISLAMIC CALLIGRAPHIC ENGRAVED AGATE

AN ISLAMIC CALLIGRAPHIC ENGRAVED AGATE AND SILVER SIGNET RING. - A Middle Eastern style talismanic signet ring featuring a large, oval, flat-topped agate intaglio. The stone is a translucent brownish-yellow hue, often referred to in this context as Yemeni aqeeq. The face of the stone is deeply incised with four horizontal bands of calligraphic script, likely featuring Quranic verses or religious prayers in Arabic or Persian, though the complex nature of the script prevents a literal transcription. The stone is bezel-set within a decorative mount with a scalloped or piecrust edge. The heavy, wide-shouldered shank is decorated with prominent vertical gadrooning or fluting that tapers towards the base of the band.