It is fully marked on the jump ring with an. 1 AR' UnoAErre makers mark, and a'375' EU 9ct gold purity mark. Overall a beautiful 9ct yellow gold fancy link chain necklace in excellent wearable condition. Please be aware that this is a used necklace and so it will display wear commensurate with its age including scratches and indentations.
Before purchasing please ensure that you are certain this item will fit the intended recipient. I can be contacted if you have any further questions in this regard.