Of rectangular form to a stepped collet setting and C scroll swivel mount. The chalcedony seal with intaglio cut with a coat of arms . The other side with glass compartment with tri-coloured flowering pot. The suspension mount? stamped maker's mark for Charles Daniel Broughton and 9c. Length of seal - 5.6 cm / 2.2 inches Gross weight - 55.38 grams / 1.78 ozt The item has been XRF tested and found to be 18.22 carat gold