Web site: https://www.ancient-jewellery.com/
This is a fabulous hardstone cameo ring, dating to the early 19th century. The ring is made from 18k gold (tested but not marked). It is set with an onyx cameo, sculpted with a female head - likely a rendering of Arethusa. It is a nice ring in good antique condition.
OBJECT: Cameo ring
CULTURE: Classical Revival
DATE: 19th century
MATERIAL: Onyx & 18k Gold
SIZE: 22mm x 19mm x 2mm ( cameo 14mm x 11mm x 4mm)
RING SIZE: 6 1/4 (US) M 1/2 (UK)
WEIGHT: 3.5 grams
PROVENANCE: Formerly in a private collection, Cambridge.