Deco Interiors has dated this piece to the 1920s.
Stamped for 18ct gold & Platinum & diamonds tested.

Dated c.1915-1920.
Ring size P½ - Q; can be easily resized larger or smaller by reputable high street jewellers for in the region of £25 - £40.
Please indicate your preference of antique style box pictured; antique style black oval or hexagonal box; modern black velvet box or period antique box upon enquiry or purchase.
Tracked and insured postage for this item is £7.50 to UK or £15 internationally.
Deco Interiors has dated this piece to the 1920s.
Deco interiors, windsor house, moreton in marsh
You can view the stock and full dealer information on the Deco Interiors Profile Page