9ct Gold Onyx Signet Ring, Fully Hallmarked, Size P

A 9 carat yellow gold ring of signet form, the flat top set with a rectangular black stone in a millegrained bezel, on a plain tapering band. UK finger size P. HALLMARK: fully hallmarked inside the shank. The marks comprise a sponsor's mark read as MJ, the CROWN (the traditional United Kingdom fineness mark for gold), the millesimal fineness .375, an assay office mark and a date letter. This is a complete British hallmark and the ring is sold as 9 CARAT GOLD. The assay office mark and date letter are not legible in the photograph, so neither the office nor the year is claimed. THE BLACK STONE has not been tested. A flat rectangular black stone in a bezel of this type is most commonly ONYX, and it is offered on that basis, but black glass and dyed chalcedony are also used for this setting and the photographs do not distinguish between them. Condition commensurate with age and wear, the stone sound with no chips visible, light surface marks to the gold. The identification, condition assessment and valuation in this listing were produced by an AI analysis of photographs only. ALL PURCHASES ARE MADE ENTIRELY AT THE BUYER'S OWN RISK. Sold as seen. These are second-hand goods and there are no returns.